NEET Biology Chapter 5 Natural Resources Multiple Choice Questions

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NEET Biology  Chapter 5 Natural Resources Multiple Choice Questions

Question 1. An inexhaustible resource is ______.

  1. Soil
  2. Minerals
  3. Solar energy
  4. Fossil fuels

Answer. 3. Solar energy

Question 2. Which of the following(s) is a constituent of SPM?

  1. Dust
  2. Smoke and soot
  3. Fly ash
  4. All the above

Answer. 4. All the above

Question 3. Air is a mixture of

  1. Nitrogen, oxygen, carbon monoxide, water vapour
  2. Nitrogen, carbon dioxide, oxygen, carbon monoxide
  3. Nitrogen, oxygen, methane, carbon dioxide
  4. Nitrogen, oxygen, water vapour, carbon dioxide

Answer. 4. Nitrogen, oxygen, water vapour, carbon dioxide

NEET Biology Chapter 5 Natural Resources mcqs

Question 4. Green plants in an ecosystem are referred to as

  1. Consumer
  2. Producer
  3. Decomposer
  4. None of the above

Answer. 2. Producer

Question 5. Which of the following is not a renewable resource?

  1. Soil
  2. Minerals
  3. Forests
  4. Underground water

Answer. 4. Underground water

Question 6. Greenhouse gases are caused by which of the following?

  1. Industries
  2. Rhizobium
  3. Lightening
  4. All the above

Answer. 4. All the above

Question 7.  Nitrogen fixation can be done by which of the following?

  1. Industries
  2. Rhizobium
  3. Lightening
  4. All the above

Answer. 4. All the above

Question 8. On moon, the temperature ranges from –190° C to 110° C. This effect occurs due to which of the following?

  1. No water bodies present
  2. Water bodies present.
  3. No biogeochemical cycle.
  4. No atmosphere

Answer. 4. No atmosphere

Question 9. Depletion of ozone molecules in the stratosphere is due to which of the following?

  1. Chlorine compound
  2. Fluorine compound
  3. Halogen compound
  4. None of these

Answer. 3. Halogen compound

Question 10. According to central pollution control board, particles that are responsible for causing great harm to human health are of the diameter

  1. 2.50 µm
  2. 5.00 µm
  3. 10.00 µm
  4. 7.5 µm

Answer. 1. 2.50 µm

Question 11. Metal generally present in polluted air is

  1. cadmium
  2. lead
  3. mercury
  4. zinc

Answer. 2. lead

Question 12. Pollutants emitted by jet aeroplanes in outer atmosphere fluorocarbon are known as

  1. smog
  2. photochemical oxidants
  3. aerosols
  4. loess

Answer. 3. aerosols

Question 13. Acid rain is rainfall with a pH of

  1. 7
  2. 6.56
  3. 5.65
  4. 11

Answer. 3. 5.65

Question 14. Algal bloom in a lake

  1. increases the carbon dioxide level
  2. leads to oxygen depletion
  3. kills fishes
  4. all of these

Answer. 4. all of these

Question 15. Water pollution is best assessed by determining the

  1. DO
  2. BOD and turbidity.
  3. DO and acidity.
  4. hardness and alkalinity.

Answer. 2. BOD and turbidity.

Question 16. Which of the following is not a factor responsible for the occurrence of soil erosion?

  1. Dust storm
  2. Heavy rains
  3. Cyclones
  4. Flood

Answer. 3. Cyclones

Question 17. Which of the following is not a property of alluvial soil?

  1. Layered
  2. Contains smooth round particles
  3. Rich in humus
  4. Suitable for growing pulses

Answer. 4. Suitable for growing pulses

Question 18. Measurement of clay particles in soil is about ___________.

  1. 0.5 mm
  2. 0.05 mm
  3. 5 mm
  4. 50 mm

Answer. 2. 0.05 mm

Question 19. The breakdown of complex substances by living organisms, such as lichens and bryophytes is termed as

  1. biological weathering
  2. chemical weathering
  3. physical weathering
  4. paedogenesis

Answer. 4. paedogenesis

Question 20. Which of the following is not an effect of ozone depletion?

  1. Skin cancer
  2. Poor digestion
  3. Damage to eyes
  4. Damages immune system

Answer. 2. Poor digestion

Question 21. Cycling materials are stored in reservoirs or sinks and become unavailable to living organisms, this process is called

  1. organic sink
  2. inorganic sink
  3. carbon sink
  4. phosphorus sink

Answer. 3. carbon sink

Question 22. What is the percentage of oxygen in air?

  1. 29
  2. 71
  3. 46
  4. 21

Answer. 4. 21

Question 23. Which of the following is the role of azotobacter in the soil?

  1. Nitrogen fixation
  2. Ammonification
  3. Nitrification
  4. Denitrification

Answer. 1. Nitrogen fixation

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