Environmental Issues MCQ

1. Which of the following facts is incorrect?

1. 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

2. Areas that are under the influence of DDT may observe a decline in the population of birds. This is due to the fact that

1. 1. Birds stopped laying eggs altogether
   2. The eggs did not hatch
   3. Predation of the eggs increased
   4. None of the above.

3. Measuring BOD (biological oxygen demand) is primarily used for

1. 1. Estimating the types of microbes
   2. Determine the level of dissolved oxygen
   3. Estimating the quantity of organic matter in sewage water
   4. None of the above

4. Cosmic rays, such as gamma rays are a source of

1. 1. Soil Pollution
   2. Noise Pollution
   3. Thermal Pollution
   4. Radiation pollution

5. The primary agenda of the Kyoto protocol is 

1. 1. Regulation of hazardous wastes
   2. Regulate the production of nuclear energy
   3. Control anthropogenic sources of greenhouse gases
   4. None of the above

6. The presence of _________ in a water body is an indicator of water pollution.

1. 1. Zygosporangium
   2. E.Coli
   3. Deinococcus radiodurans
   4. None of the above

7. Eggshells of birds become unusually thin when exposed to the pesticides in their environment. The protein that gets affected is ________

1. 1. Calmodulin
   2. Cysteine
   3. Serine
   4. None of the above

8. Lichens are good bioindicators for 

1. 1. Environmental radiation
   2. Soil pollution
   3. Water and air pollution
   4. None of the above

9. A moth having a speckled wing, able to blend into its background due to its dark colouration is called

1. 1. Industrial melanism
   2. Adaptation
   3. Predation
   4. Evolution

10. Carbon dioxide is primarily called a greenhouse gas because

1. 1. Traps heat
   2. Traps light
   3. Traps warm currents
   4. None of the above

11. Trichoderma harzianum is a ________ that is predominantly used as a fungicide

1. 1. Virus
   2. Fungus
   3. Bacteria
   4. Protozoa

12. Greenhouse gases are those that absorb and emit infrared radiation. Examples inlude__________

1. 1. Nitrogen
   2. Ozone
   3. Argon
   4. None of the above

13. Depletion of the ozone layer is damaging to human health. Negative effects include

1. 1. Skin cancers
   2. Osteoporosis
   3. Dyspepsia
   4. None of the above

14. __________ is an organism used to gauge the quality of an ecosystem. 

1. 1. Decomposers
   2. Predator
   3. Bio-remediator
   4. Bioindicator

15. _________ is a waste disposal method where solid organic wastes are converted to the residue and gaseous products through combustion.

1. 1. Incarnation
   2. Incineration
   3. Incarceration
   4. Incubation

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