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Water (Class VI)

Water

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following processes is used by plants to release the surplus water into the air through their leaves?

  1. Evaporation
  2. Precipitation
  3. Condensation
  4. Transpiration
  5. Sublimation
Question 2 Multiple Choice (Single Answer)

Which of the following is/are the factors that do not increase the rate of evaporation?

a. Lower temperature of the air
b. Movement of air
c. Larger area of the exposed surface

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 3 Multiple Choice (Single Answer)

Which of the following is/are not a constituent of clouds?

  1. Droplets of water
  2. Particles of dust
  3. Ice crystals
  4. Air
  5. Various minerals
Question 4 Multiple Choice (Single Answer)

Through which of the following processes, water vapours are added into the air?

a. Evaporation
b. Transpiration
c. Condensation
d. Precipitation

  1. Only a and c
  2. Only b and d
  3. Only a and b
  4. Only b and c
  5. Only c and d
Question 5 Multiple Choice (Single Answer)

Which of the following clouds are found highest in the atmosphere?

  1. Cirrus
  2. Cumulus
  3. Cumulonimbus
  4. Stratus
  5. Altostratus
Question 6 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. The oceans and the seas cover about 3/4 the surface of the earth.
b. The sea water is salty and is unfit for drinking or agricultural activities.
c. The process due to which water changes into its vapour from its exposed surface is called precipitation.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 7 Multiple Choice (Single Answer)

Which of the following are the dust particles covered with layers of ice, that are formed in the thunder clouds?

  1. Mist
  2. Hail
  3. Fog
  4. Snow
  5. None of the above
Question 8 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. The cool air can hold a large amount of water vapours.
b. The lower part of the earth’s atmosphere is full of water vapours.
c. Clouds are formed when some water vapours change into liquid state and form tiny droplets of water.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 9 Multiple Choice (Single Answer)

Fog is actually a cloud touching the surface of the earth. It is formed due to

  1. condensation taking place high up in the atmosphere
  2. precipitation taking place near the earth’s surface
  3. condensation taking place near the earth’s surface
  4. precipitation taking place high up in the atmosphere
  5. evaporation of water particles taking place near the earth’s surface
Question 10 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. Excess water vapour condenses on dust particles to form the clouds.
b. On a dry day, the clouds are very low in the sky, where it is the coldest.
c. The main reason of precipitation is the cooling off of the clouds.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 11 Multiple Choice (Single Answer)

The water cycle is not powered by which of the following?

a. Heat of the sun
b. The force of gravity
c. The condensation of water vapours

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 12 Multiple Choice (Single Answer)

The overflowing of water from the rivers and streams due to excessive rains are called floods. Which of the following is/are the consequence(s) of floods?

  1. Rise in water level
  2. Soil erosion
  3. Damage to the crops
  4. Outbreak of diseases
  5. All of the above
Question 13 Multiple Choice (Single Answer)

Match the following
a. Condensation 1. It is the process through which the plants release the surplus water into the air through their leaves.
b. Precipitation 2. It is the falling of water drops from the clouds.
c. Transpiration 3. It is the change of gaseous form of water into the liquid state on cooling.
  1. a – 3, b – 2, c – 1
  2. a – 3, b – 1, c – 2
  3. a – 2, b – 3, c – 1
  4. a – 1, b – 2, c – 3
  5. a – 1, b – 3, c – 2
Question 14 Multiple Choice (Single Answer)

Continuous absence of rains causes drought. Which of the following is not an effect of drought?

  1. It causes plants and animals to wither away.
  2. Crops are unable to grow.
  3. It causes erosion of soil.
  4. The level of groundwater rises.
  5. It leads to widespread unemployment.
Question 15 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. Due to the condensation of water vapours on ice particles, clouds are formed.
b. A wet cloth dries quickly due to the process of evaporation.
c. In drain water harvesting, the rainwater flowing on the roads is collected through big pipes and is directly allowed to flow into the ground.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
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