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Science Past Questions of SEE – Class 10

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Following are the past-questions asked in Secondary Education Examination – 2075 throughout Nepal.

Question Paper Solution:

  1. Science Solved Question Paper – 2075 111’EP’
Science Solved Question Paper – 2075 111’EP’
Science Solved Question Paper – 2075 111’EP’

Force

1 marks questions

  1. What is the value of acceleration due to gravity ‘g’ at the centre of the earth? [SEE 2075 111-BP]
  2. What is the value of acceleration due to gravity ‘g’ at the pole of the earth? [SEE 2075 111-AP]
  3. What is an acceleration due to gravity? [SEE 2075 111-CP]
  4. Write the value of acceleration due to gravity on the surface of the moon in S.I. unit. [SEE 2075 111-DP]

2 marks questions

  1. Kathmandu lies at high altitude than Biratnagar from sea level. Where does an object has more weight between two places? Give reason. [SEE 2075 111-AP]
  2. When a man travels from Hilly region to Terai region, what will happen to his weight? Explain with reasons. [SEE 2075 111-CP]
  3. Mass of a body is constant but weight varies from place to place, why? [SEE 2078 RE-111’C’]

3 marks questions

  1. Mass of Jupiter is 1.9×1030 kg and mass of the Sun is 2×1030 kg. Calculate the distance between them if the gravitational force between them is 4.3×1029N. [SEE 2075 111-BP]
  2. The gravitational force produced between any two objects kept 2.5×104 km apart is 580N. At what distance should they be kept so that the gravitational force becomes half? [SEE 2075 111-DP]
  3. Some comparisons about Earth and Mars are given: [SEE 2078 RE-111’C’]
    Mass of Earth = 10 x Mass of Mars
    Radius of Earth = 2 x Radius of Mars
    If the weight of 1 kg mass of water is 10 N on Earth, calculate the weight of 1 kg mass of water on Mars.

4 marks questions

Pressure

1 marks questions

  1. What is atmospheric pressure? [SEE 2075 111-BP]
  2. Name two instruments which can be constructed on the basis of Pascal’s law. [SEE 2075 111-CP]
  3. What is upthrust? [SEE 2075 111-DP]
  4. State Archimedes’ principle. [SEE 2078 RE-111’C’]

2 marks questions

  1. Write any two differences between Archimedes principle and principle of floatation. [SEE 2075 111-BP]
  2. What happens if an egg is kept in two beakers containing pure water and saturated salt solution? Why? [SEE 2075 111-AP]
  3. An object weights 20 N in air and 16 N in liquid then answer the following questions. [SEE 2075 111-CP]
    i) What is the upthrust of the liquid on the object?
    ii) What is the weight of the displaced liquid? Write with reason.
  4. Hydraulic press is called force multiplier. Why? [SEE 2075 111-DP]

3 marks questions

  1. What is the condition for an object to sink in water? The cross-sectional area of piston A1 and A2 is 50cm2 and 0.2m2 respectively. How much load can lift in piston A2 if 250N force is applied on piston A1. [Figure: Piston] [SEE 2075 111-AP]
  2. Explain any four changes that occur during the upstroke of water pump. [SEE 2078 RE-111’C’]

4 marks questions

  1. Draw a clean figure of a water pump showing upstroke and explain any three changes that occur during this process.

Energy

1 marks questions

  1. Write any two examples of bio-fuel. [SEE 2075 111-BP]
  2. What is alternative source of energy? [SEE 2075 111-AP]
  3. Write two examples of non-renewable source of energy. [SEE 2075 111-CP]
  4. Write two examples of biomass. [SEE 2075 111-DP]
  5. Name the type of coal found in Nepal. [SEE 2078 RE-111’C’]

2 marks questions

  1. In the context of Nepal, hydropower should be given more priority rather than fossil fuel. Why? Justify with two reasons. [SEE 2075 111-AP]
  2. Write any two difference between fossil fuel and bio fuel. [SEE 2075 111-CP]
  3. Large amount of energy is produced during the fission of uranium atom. Give reason. [SEE 2075 111-DP]
  4. State any two causes of energy crisis. [SEE 2078 RE-111’C’]

3 marks questions

  1. “The world will face energy crisis in near future.” Justify this statement. [SEE 2075 111-BP]
  2. In a house 6 bulbs each of 100 watt runs for 8 hours daily and 3 heaters of 1500 watt runs 5 hours daily, how much unit of electricity is consumed in thirty days? [SEE 2075 111-DP]

4 marks questions

Heat

1 marks questions

  1. Write the relation between heat gain or loss by a body with its surface area. [SEE 2075 111-BP]
  2. In which two factors does the heat gain or loss by an object depend upon? [SEE 2075 111-AP]
  3. What is heat equation? [SEE 2075 111-CP]
  4. Write the boiling point and freezing point of mercury. [SEE 2075 111-DP]
  5. Name the instrument that is used to measure heat. [SEE 2078 RE-111’C’]

2 marks questions

  1. Alcohol thermometer can measure the temperature on an ice but cannot measure the boiling point of water. Why? [SEE 2075 111-BP]
  2. Mention two reasons of using nichrome wire in electric heater. [SEE 2075 111-AP]
  3. During the winter, animals sit into curl, why? [SEE 2075 111-CP]
  4. Write any two differences between clinical thermometer and laboratory thermometer. [SEE 2075 111-DP]
  5. Write any two differences between Heat and Temperature. [SEE 2078 RE-111’C’]

3 marks questions

  1. Prove that heat loss or gain by an object is equal to the product of mass of object, specific heat capacity and change in temperature. [SEE 2075 111-AP]
  2. If three liquid A, B and C having equal masses are taken in three same size of beakers and exposed in sunlight. After 10 minutes the increased temperature in each is given in the table: [SEE 2075 111-CP]
    Liquid  Increased Temperature
    A 10oC
    B 8oC
    C 6oC
    i) Which liquid has highest specific heat capacity? Why?
    ii) If all three liquids are heated  to same temperature and put in the same beakers separately. Which one cools down faster? Why?

4 marks questions

Light

1 marks questions

  1. The magnification is less than 1. What does it mean? [SEE 2075 111-BP]
  2. Define converging lens. [SEE 2075 111-AP]
  3. Write the relationship between power of lens and its focal length. [SEE 2075 111-DP]
  4. Define focal length. [SEE 2078 RE-111’C’]

2 marks questions

  1. How do ciliary muscles focus our eye? [SEE 2075 111-BP]
  2. Which lens is used in spectacles to remove short-sightedness? Why? [SEE 2078 RE-111’C’]

3 marks questions

4 marks questions

  1. Draw a ray diagram of an image formed when an object is placed at a distance of 10 cm from a convex lens having focal length 20 cm. Write any two nature of image. Calculate the power of lens. [SEE 2075 111-AP]
  2. Complete the ray diagram given alongside. Also mention any two natures of the image thus formed. If the power of the lens is +4D, What should be the distance between lens and magazine to read it properly? {body is between F and 2f) [SEE 2075 111-CP]
  3. Draw a ray diagram of an image formed when an object kept at a distance of 50 cm from a convex lens having focal length 20 cm. Write any two nature of image. Calculate the power of lens. [SEE 2075 111-DP]

Electricity and Magnetism

1 marks questions

  1. What is transformer? [SEE 2075 111-AP]
  2. Write one example of each instrument that produces less amount of electricity and large amount of electricity. [SEE 2075 111-CP]
  3. Name one instrument based on the magnetic effect of current. [SEE 2078 RE-111’C’]

2 marks questions

  1. A permanent magnet cannot be used in the electric bell, why? [SEE 2075 111-BP]
  2. Write two uses of transformer. [SEE 2075 111-DP]

3 marks questions

  1. What type of transformer is given in the diagram? Why? Calculate the primary voltage of this transformer. [fig: primary coil 100 turns and secondary coil 500 turns) [SEE 2075 111-CP]
  2. What type of transformer is shown in the given figure? Calculate the number of turns in the primary coil of this transformer. { Input 250 V, Output 1500 V and 300 turns } [SEE 2078 RE-111’C’]

4 marks questions

  1. Observe the given figure and answer the following questions. [SEE 2075 111-BP]
    Figure of electromagnet by electricity, iron nail, pins, and battery
    i) Which effect of current electricity is shown in the diagram?
    ii) What is this process called?
    iii) What is the magnet so formed by this process called?
    iv) How can we increase the strength of magnet formed by this method? Write any two ways.
  2.  

Classification of Elements

1 marks questions

  1. State Modern Periodic law. [SEE 2075 111-CP]
  2. Write the position of lanthanides in the periodic table. [SEE 2075 111-DP]
F
Cl
Br
I

2 marks questions

  1. What is the reactivity of non-metal when its size increases? Why? [SEE 2075 111-BP]
  2. Write any two characteristics of modern periodic table. [SEE 2075 111-AP]
  3. Write any two differences between IA group elements and VIIA group elements. [SEE 2075 111-CP]
  4. Which group of elements are kept in the given table? What happens to the reactivity of the elements when moving top to bottom? Why? [SEE 2075 111-DP]
  5. Among Magnesium and Clacium, which element is more reactive? Give reason. [SEE 2078 RE-111’C’]

3 marks questions

  1. Subshell level of electronic configuration of few elements are given below. Answer the questions on the basis of them.
    a) 1s2, 2s2, 2p6, 3s1
    b) 1s2, 2s2, 2p6, 3s2
    c) 1s2, 2s2, 2p6, 3s2,3p4
    d) 1s2, 2s2, 2p6, 3s2,3p3

i) Which molecular formula of the compound is formed by the reaction between the least reactive metal and the most reactive non-metal among them.
ii) Sketch atomic structure of the element having valency 2 and forms covalent compound only.
iii) Which element among (c) or (d) is more reactive? Give reason to your answer.
iv) Give reason why the atomic size of elements (a) and (b) are different despite having same shell number.

4 marks questions

  1. Answer the following questions if atomic number of potassium is 19. [SEE 2075 111-BP]
    i) Write the electronic configuration of it on the basis of sub-shell.
    ii) Write its group and period in the periodic table.
    iii) Write the balanced chemical equation of chemical reaction between this element and chlorine.
    iv) Write its an importance in plant.

Chemical Reaction

1 marks questions

  1. Write the types of given chemical equation. [SEE 2075 111-AP]
    1. C + o2 -> co2
    2. 2Kclo3 -> 2KCl + 3o2
  2. Calcium + Sulphuric acid →Calcium sulphate + Hydrogen. Mention its type of chemical reaction. [SEE 2075 111-CP]
  3. Write any two conditions required for a chemical reaction to occur. [SEE 2078 RE-111’C’]

2 marks questions

  1. Write the following word equation into balanced formula equation. [SEE 2075 111-BP]
    Nitric acid + calcium hydroxide -> Calcium nitrate + water
  2. A chemical substance gives hydrogen ion and chloride ion when dissolved in water. Similarly, another chemical substance gives sodium ion and hydroxide ion. Write their molecular formula and also chemical reaction between them. [SEE 2075 111-BP]
  3. Write the balanced chemical reaction between Aluminium metal and dilute hydrocholoric acid. Mention the type of reaction with reason. [SEE 2075 111-AP]
  4. Write the given word equation into formula equation. [SEE 2075 111-CP]
    i) Zinc + Sulphuric Acid -> Zinc sulphate + Hydrogen
    ii) Limestone -> Quick lime + Carbondioxide
  5. Two chemical substances A and B when mixed at room temperature react very slowly. Suggest two different ways of increasing the rate of this reaction. [SEE 2075 111-DP]
  6. Write a balanced chemical equation in which positive catalyst is used. [SEE 2075 111-DP]

3 marks questions

4 marks questions

Acid Base and Salt

1 marks questions

  1. What is acid? [SEE 2075 111-BP]
  2. Define neutral salt. [SEE 2075 111-AP]

2 marks questions

  1. Write any two chemical properties of base with formula equations. [SEE 2075 111-CP]

3 marks questions

  1. In the given figure, red litmus paper is inserted in solution and colour remains unchanged then what may be contained in vessel among acid, base and salt solution. How can it be further tested to confirm it? [SEE 2075 111-AP]
  2. How can alkali be formed from a magnesium ribbon? Explain with chemical equation. Also write one use of alkali so formed. [SEE 2078 RE-111’C’]

4 marks questions

Some Gases

1 marks questions

  1. What is Haber’s process? [SEE 2075 111-CP]
  2. By which property of carbondioxide it helps in extinguish the fire? [SEE 2075 111-DP]

2 marks questions

3 marks questions

  1. Draw a well-labelled diagram of laboratory preparation of carbon dioxide gas with balanced chemical equation. [SEE 2075 111-BP]
  2. Which gasses are produced when ammonium carbonate is heated in a hard-glass test-tube? Write the balanced chemical equation of the chemical reaction that takes place in the hard-glass test-tube when ammonium carbonate is heated. [SEE 2075 111-CP]
  3. How can we prepare a weak acid from carbondioxide? Write with chemical equation. [SEE 2075 111-DP]
  4. The laboratory preparation of carbondioxide gas is in given figure: [SEE 2078 RE-111’C’]
    i) How is the gas tested?
    ii) What happens when the delivery tube is dipped into the mixture in round bottom flask?
    iii) What will happen if the gas jar is kept upright?

4 marks questions

  1. Study the given diagram and answer the following questions. Figre: carbondioxide preparation] [SEE 2075 111-AP]
    • Which gas is collected in gas jar?
    • Why is the gas jar kept erect?
    • What happen when gas is reacted with potassium hydroxide? Write the balanced chemical equation.
  2. Study the given diagram and answer the following questions. (Figure: Ammonia preparation] [SEE 2075 111-DP]
    • Which gas is collected in jar?
    • Why is lime tower used to collect the gas?
    • What happens when this gas is passed in water? Write chemical reaction.

Metals

1 marks questions

  1. What is an alloy? [SEE 2075 111-BP]
  2. Name any two ores of iron. [SEE 2075 111-AP]
  3. Which metal is used to produce steel? [SEE 2078 RE-111’C’]

2 marks questions

  1. Write any two ores of copper and any one use of it. [SEE 2078 RE-111’C’]

3 marks questions

  1. Write any three uses of aluminium in our daily life. [SEE 2075 111-CP]
  2. Write three uses of iron in our daily life. [SEE 2075 111-DP]

4 marks questions

Hydrocarbon and its Compounds

1 marks questions

  1. What is IUPAC name of methyl alcohol? [SEE 2075 111-BP]
  2. Write general formula of alkene. [SEE 2075 111-AP]
  3. What is acetylene? [SEE 2075 111-CP]
  4. Write the IUPAC name of ethyl alcohol? [SEE 2075 111-DP]
  5. Write the full form of IUPAC. [SEE 2078 RE-111’C’]

2 marks questions

  1. Name the compound having the given structural formula. Which compound is formed when one hydrogen atom from each carbon is replaced by -OH group and also write its one application. (C3H8) [SEE 2075 111-BP]
  2. Write a structural formula of glycerol and write any one use of ethyl alcohol. [SEE 2075 111-AP]
  3. Which hydrocarbon is called marsh gas? Why? [SEE 2078 RE-111’C’]

3 marks questions

4 marks questions

  1. Study the given structural formula and answer the following questions. (C2H6)
    i) Write the general formula of given structural formula. [SEE 2075 111-CP]
    ii) Write the name of the compound formed by the removal   of one hydrogen by one ‘OH’ from the above compound.
    iii)  Write any one use o fenergy produced by the burning of the given compound.
    iv) Write the structural formula of the compound which is formed by the placing double bond between carbons in given structural formula.
  2.  

Materials used in Daily Life

1 marks questions

  1. Write one special property of water glass. [SEE 2075 111-BP]
  2. What is glazing? [SEE 2075 111-DP]
  3. Give an example of organochloro pesticide. [SEE 2078 RE-111’C’]

2 marks questions

  1. Write any two functions of organic fertilizer. [SEE 2075 111-AP]
  2. Write two reasons that compost fertilizer is better than chemical fertilizer. [SEE 2075 111-CP]
  3. Write any two differences between thermoplastic and thermosetting plastic. [SEE 2078 RE-111’C’]

3 marks questions

  1. How can you prepare soap? Write with word/ formula equation. [SEE 2075 111-BP]
  2. Why is glass called fourth state of matter? Write any two uses of water glass and lead crystal glass. [SEE 2075 111-AP]

4 marks questions

Inverterbrates

1 marks questions

  1. Write the name of two species of silkworm cultivated in Nepal. [SEE 2075 111-AP]
  2. Name two types of silkworms cultivated in Nepal. [SEE 2075 111-DP]
  3. Which insect is called queen of fiber? [SEE 2078 RE-111’C’]

2 marks questions

  1. Write any two differences between adult silkworm and its larva. [SEE 2075 111-BP]
  2. Write any two differences between drone bee and worker bee. [SEE 2075 111-AP]
  3. Write any two differences between drone bee and worker bee. [SEE 2075 111-DP]
  4. Draw a neat diagram of silk worm larva and name any two parts of it. [SEE 2078 RE-111’C’]
  5. Write any two important uses of silkworm. [SEE 2078 RE-111’C’]

3 marks questions

4 marks questions

  1. In the given diagram, it is a stage of life cycle of silkworm. Study the given stage and answer the following questions. [SEE 2075 111-CP]
    i) Identify the given stage.
    ii) Label the  parts B and C.
    iii) Write an importance of this stage.
    iv) Name the stage that comes after this stage.

Human Nervous and Glandular System

1 marks questions

  1. What is the main function of cerebrospinal fluid? [SEE 2075 111-CP]
  2. Write two substances produced by testes. [SEE 2075 111-DP]

2 marks questions

  1. Write any two functions of medulla oblongata. [SEE 2075 111-BP] [SEE 2075 111-CP]
  2. Write any two differences between axons and dendrites. [SEE 2075 111-AP]
  3. Pancreas is called mixed gland. Why? [SEE 2075 111-DP] 

3 marks questions

4 marks questions

  1. Answer the following questions on the basis of the given daigram:
    i) If a person looses the capacity of recognizing other people after an accident, which part of the system is affected? The outer surface of that part is of a particular colour, explain why?
    ii) Explain the role of P and S, when a person touches hot electric iron.

Blood Circulation in Human Body

1 marks questions

  1. Write the name of nongranular leukocytes. [SEE 2075 111-BP]
  2. Write the name of vein in which pure blood flows. [SEE 2075 111-AP]
  3. What is the main function of red blood cell? [SEE 2075 111-CP]
  4. What is uric acid? [SEE 2075 111-DP]

2 marks questions

  1. Walls of auricles and ventricles are not of same thickness. Why? [SEE 2075 111-BP]
  2. Write any two differences between systemic and pulmonary blood circulation. [SEE 2075 111-AP]
  3. Write two differences between pulmonary artery and pulmonary vein. [SEE 2075 111-CP]
  4. Write any two causes of increasing uric acid. [SEE 2075 111-DP]

3 marks questions

  1. Suggest any three precautions to be taken to reduce the amount of uric acid in the blood. [SEE 2075 111-CP]
  2. Given figure is a simplified model diagram of human circulatory system. Answer the following questions by studying that diagram:
    i) Which segment’s blood circulation represents pulmonary circulation?
    ii) Mixing of uric acid in blood occurs mainly through which segment of blood circulation?
    iii) Removal of uric acid from blood occurs mainly through which segments blood circulation?

4 marks questions

Chromosomes and Sex Determination

1 marks questions

  1. What is kinetochore? [SEE 2075 111-BP]
  2. Write any two chromosomal disorders caused by sex chromosome. [SEE 2075 111-AP]
  3. From what two substances chromosome is made up of? [SEE 2075 111-CP]
  4. What is metacentric chromosome? [SEE 2075 111-DP]
  5. Define chromosome.

2 marks questions

  1. Which process is represented by given chart? According to that process write down differences between (44,xx) and (44,xy). {Chart: Sex Determination) [SEE 2075 111-AP]
  2. Describe the process of sex determination. [SEE 2075 111-CP]
  3.  Write any two symptoms of an individual having (44+XXY) karyotype. [SEE 2078 RE-111’C’]

3 marks questions

  1. Draw a diagram of sex-determination. [SEE 2075 111-BP]

4 marks questions

  1. Justify with suitable chart that women is not responsible to give birth only daughters. [SEE 2075 111-DP]

Asexual and Sexual Reproduction

1 marks questions

  1. Name any two plant hormones. [SEE 2075 111-BP]
  2. What is the part of plant called that is used for root in grafting? [SEE 2075 111-AP]
  3. Write the name of two plants that reproduce by sporulation process of reproduction. [SEE 2075 111-CP]
  4. Planaria reproduces by the process of regeneration. What does it mean? [SEE 2075 111-DP]
  5. How does cross pollination occur? [SEE 2078 RE-111’C’]

2 marks questions

  1. Write any two importance of tissue culture. [SEE 2075 111-DP]
  2. Write any two differences between self pollination and cross pollination. [SEE 2078 RE-111’C’]

3 marks questions

  1. Draw neat and clean diagram of reproductive part of plant and label its four major parts. [SEE 2075 111-AP]
  2. Describe sexual reproduction in flowering plant with diagram. [SEE 2075 111-CP]

4 marks questions

  1. Study the given diagram and answer the following questions. [SEE 2075 111-BP]
    Fig: grafting on stems.
    i) Name the method of vegetative propagation.
    ii) Write a cause that vegetative propagation is applied commercially.
    iii) Write two importance of this propagation.

Heredity

1 marks questions

  1. Write scientific name of pea. [SEE 2075 111-BP]
  2. What is mutation? [SEE 2075 111-CP]
  3. Write any two differences between variation and mutation. [SEE 2075 111-BP]
  4. When a pure pea plant with red flower is crossed with pure pea plant with white flower, what will be the characteristics of offspring in first filial generation? Explain with reason. [SEE 2075 111-CP]
  5. State the law of dominance. [SEE 2078 RE-111’C’]

2 marks questions

3 marks questions

  1. Write any three difficulties Mendel would have faced if he carried his experiment on human instead of pea plants. [SEE 2075 111-DP]
  2. Here at three categorizes of pea seeds. Which two plants grown from the given seeds will you select for cross-pollination to have half of offsprings as tall and reamining half as dwarf? Present the result in a chart and write the genotypic ratio. [Seeds: TT, Tt, tt]

4 marks questions

  1. Draw a chart to show the first generation and second generation resulted due to the fusion of gamets of long-winged housefly (HH) and short-winged housefly (hh). Which generation shows the law of purity of gamets? Justify it. [SEE 2075 111-AP]

Environmental Pollution and Management

1 marks questions

  1. What is environmental pollution? [SEE 2075 111-BP]
  2. Mention any two effects of water pollution. [SEE 2075 111-AP]
  3. What is an acid rain? [SEE 2078 RE-111’C’]

2 marks questions

3 marks questions

  1. Identify any three ways for the management of domestic wastage. [SEE 2075 111-BP]
  2. What will you suggest to your neighbours so that it can help to reduce soil pollution? Write any six suggestions. [SEE 2075 111-AP]
  3. Mention any two reasons of chemical pollution. [SEE 2075 111-DP]
  4. How does air pollution inhibit biological growth of plants? Explain. [SEE 2075 111-DP]
  5. How does air pollution cause acid rain? Write the chemical reaction. [SEE 2078 RE-111’C’]

4 marks questions

History of The Earth

1 marks questions

  1. In which eras do owl and flowering plants evolved? [SEE 2075 111-AP]
  2. Write two major events occurring on Mesozoic era. [SEE 2075 111-CP]
  3. Define synodic month. [SEE 2075 111-DP]
  4. Which era is called the time of reptiles? [SEE 2078 RE-111’C’]

2 marks questions

3 marks questions

4 marks questions

Climate Change and Atmosphere

1 marks questions

  1. What is crude oil? [SEE 2075 111-BP]

2 marks questions

  1. Write two effects of ozone layer depletion. [SEE 2075 111-DP]
  2. Write any two importance of ozone layer. [SEE 2078 RE-111’C’]

3 marks questions

4 marks questions

  1. Following are the findings in a study done on the earth environment. The temperature of respective environment is increasing. The number of amphibians are decreasing. Human being are suffering from cataracts and skin cancer. [SEE 2075 111-BP]
    Answer the following question on the basis of above facts.
    i) What is the cause of above findings?
    ii) What is to be done to remain safe from above conditions?
    iii) Write one more similar harmful effect to human health.
    iv) What happens to the environment temperature at this condition?
  2. Write the name of main chemical which destroys ozone layer. How is ozone layer depleted by that chemical? Describe with chemical equation. [SEE 2075 111-AP]
  3. How does acid rain occur? Write with chemical equation. Present two suggestions to minimize the effect of acid rain occurred in Nepal. [SEE 2075 111-CP]
  4. ‘Excessive use of mineral oil and coal help to increase the greenhouse effect’. Justify the statement. Write two negative effects due to the ozone layer depletion. [SEE 2075 111-DP]
  5. Climate of Hilly region resembling that of Terai, naked rocks being exposed at mountain peaks, fruits and vegatables like mangoes and tomatoes growing in hilly region too, rhododendrons blossoming earlier than usual are some changes seen in Nepal. Answer the following questions based on these changes:
    • In your opinion, are the above-mentioned changes advantageous or disadvantageous for Nepal? Give two valid points in support of your answer.
    • Which human acitivities are responsible for the changes mentioned above and which layer of atmosphere is affected by human activities for these changes?

The Earth in the Universe

1 marks questions

2 marks questions

  1. Write any two similarities between the Earth and Venus. [SEE 2075 111-BP]
  2. Why is meteor generally finished before reaching the earth surface? [SEE 2075 111-AP]
  3. Write any two reasons that life is not exist on the planet Mercury. [SEE 2075 111-CP]

3 marks questions

4 marks questions

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