Environmental Issues NEET MCQ:
1. Increase in concentration of the toxicant at successive trophic levels is known as_________
(1) Biogeochemical cycling
(2) Biomagnification
(3) Biodeterioration
(4) Biotransformation
Answer: 2
2. The Air Prevention and Control of Pollution Act. came into force in_______
(1) 1981
(2) 1990
(3) 1957
(4) 1985
Answer: 1
3. Greenhouse gases are those that absorb and emit infrared radiation. Examples inlude__________
(1) Nitrogen
(2) Ozone
(3) Argon
(4) None of the above
Answer: 1
4. Depletion of the ozone layer is damaging to human health. Negative effects include________
(1) Skin cancers
(2) Osteoporosis
(3) Dyspepsia
(4) None of the above
Answer: 1
5. Global warming can be controlled by__________
(1) Increasing deforestation, reducing efficiency of energy use
(2) Reducing deforestation, cutting down use of fossil fuel
(3) Reducing deforestation, increasing use of fossil fuel
(4) Increasing deforestation, slowing down the growth of human population
Answer: 2
6. BOD in river water_________
(1) Remains unchanged when algal bloom occurs
(2) Increases when sewage gets mixed up with river water
(3) Has no relationship with concentration of Oxygen in water
(4) Give a measure for Salmonella in water
Answer: 2
7. Which of the following best illustrates a secondary air pollutant?
(1) CO2, released from the burning of coal
(2) NO2, released from the burning of oil.
(3) Ozone produced in photochemical smog.
(4) None of the above
Answer: 3
8. Which particulate size is the most harmful?
(1) 1.0um or less
(2) 2.5um or less
(3) 1.5um or less
(4) 5.2um-2.5um
Answer: 2
9. Which of the following is not one of the major environment problems resulting from human interference in the nitrogen cycle?
(1) Global warming due to release of nitrous oxide
(2) Acid rain
(3) Eutrophication
(4) Ozone depletion
Answer: 4
10. Which of the following can be considered as the best example of primary air pollutants?
(1) Carbon dioxide released from burning of coal.
(2) Sulphur trioxide.
(3) Ozone produced in photochemical smog.
(4) Carbon dioxide released through photosynthesis.
Answer: 1
11. Which one is wrong statement?
(1) Ozone in the upper part of atmosphere is harmful to animals
(2) Greenhouse effect is a natural phenomenon
(3) Eutrophication is a natural phenomenon in freshwater bodies
(4) Most of the forests have been lost in the tropical area
Answer: 1
12. Which one of the following statements is not valid for aerosols?
(1) They are harmful to human health
(2) They alter rainfall and monsoon patterns
(3) They cause increased agricultural productivity
(4) They have negative impact on agricultural land
Answer: 3
13. Biochemical oxygen demand may not be good index for water bodies receiving effluents from______
(1) Sugar industry
(2) Dairy industry
(3) Domestic sewage
(4) Petroleum industry
Answer: 4
14. Which of the following statement is incorrect?
(1) Global warming is the rise in the average temperature of the earth’s climate system
(2) Eutrophication is observed in water bodies
(3) The greenhouse effect is a natural phenomenon
(4) Ozone is harmless to breathe
Answer: 4
15. Carbon dioxide is primarily called a greenhouse gas because
(1) It traps heat
(2) It traps light
(3) It traps warm currents
(4) None of the above
Answer: 1
16. Photochemical smog is related to the pollution of__________
(1) soil
(2) water
(3) noise
(4) air
Answer: 4
17. Most important causative pollutant of soil may be________
(1) plastics
(2) iron junks
(3) detergents
(4) glass junks
Answer: 1