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Environmental Science

Covers atmospheric pollution, smog, air composition, ecosystems, biotic and abiotic components, and environmental processes.

20 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

The product(s) of photochemical smog is/are

1. peroxyacetyl nitrate
2. carbon monoxide
3. ozone

  1. only 1
  2. 1 and 2
  3. 2 and 3
  4. 1 and 3
  5. None of these
Question 2 Multiple Choice (Single Answer)

Photochemical smog can be suppressed by

  1. nitrogen oxides
  2. hydrocarbons
  3. radical traps
  4. formaldehyde
Question 3 Multiple Choice (Single Answer)

Components other than the normal ones in atmosphere air lead to __________ of atmosphere which is harmful to us.

  1. cooling
  2. saturation
  3. pollution
  4. mixing
Question 4 Multiple Choice (Single Answer)

The temperature at which air holds all the water vapours is called as

  1. inversion point
  2. saturation point
  3. dew point
  4. none of these
Question 5 Multiple Choice (Single Answer)

The inactive component of the air is

  1. carbon dioxide
  2. nitrogen
  3. oxygen
  4. helium
Question 6 Multiple Choice (Single Answer)

Which of the following is not a part of the biotic environment?

  1. Man
  2. Air
  3. Tree
  4. Insect
Question 7 Multiple Choice (Single Answer)

During the burning of fuels, carbon and hydrogen present in the fuels are

  1. converted to alkenes
  2. converted into carbon dioxide and water vapour
  3. converted to precipitates
  4. converted into alkanes
Question 8 Multiple Choice (Single Answer)

Components of the air can be separated by the process of

  1. distillation
  2. evaporation
  3. fractional distillation
  4. sublimation
Question 9 Multiple Choice (Single Answer)

Human activities responsible for pollution of the atmospheric gases are

  1. deforestation
  2. excessive use of fossil fuels
  3. excessive use of fertilizers
  4. all of the above
Question 10 Multiple Choice (Single Answer)

Which of the following is an example of man made ecosystem?

  1. Aquarium
  2. Pond
  3. Forest
  4. Lake
Question 11 Multiple Choice (Single Answer)

Which one of the following is a biotic component of our environment?

  1. Temperature
  2. Soils
  3. Plants
  4. Rains
Question 12 Multiple Choice (Single Answer)

Population increases in

  1. A.P
  2. G.P
  3. H.P
  4. none of these
Question 13 Multiple Choice (Single Answer)

Which of the following belongs to the same tropic level?

  1. grass, rabbit, frog
  2. frog, deer, hawk
  3. rabbit, frog, dear
  4. hawk, rabbit, dear
Question 14 Multiple Choice (Single Answer)

Which of the following substances is non - biodegradable?

  1. paper
  2. plants
  3. cattle dung
  4. glass
Question 15 Multiple Choice (Single Answer)

The physical & biological world, where we live is called

  1. atmosphere
  2. environment
  3. lithosphere
  4. universe
Question 16 Multiple Choice (Single Answer)

From the chemical point of view, air is a/an

  1. pure compound
  2. mixture
  3. element
  4. suspension
Question 17 Multiple Choice (Single Answer)

The metallic core of lithosphere is called

  1. siderophile
  2. lithophile
  3. atmophile
  4. none of these
Question 18 Multiple Choice (Single Answer)

Troposphere is the layer of the atmosphere which extends upto

  1. 16 km to 80 km
  2. 8 km to 16 km
  3. 80 km to 480 km
  4. 480 km and above
Question 19 Multiple Choice (Single Answer)

Which of the following gives the correct order, in which things flow from the interior of the earth, from top to bottom, when earth is drilled?

  1. Natural gas, oil, water
  2. Oil, natural gas, water
  3. Water, natural gas, oil
  4. Water, oil, natural gas
Question 20 Multiple Choice (Single Answer)

Which of the following gases is present in the highest amount in the air?

  1. Carbon dioxide
  2. Hydrogen
  3. Nitrogen
  4. Oxygen
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