Upsc Pyq Analysis
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7. Which of the following pairs are correctly matched?
Pollutant Related disease
1. Coal dust : Pneumoconiosis 2. Cotton dust : Byssinosis 3. Mercury : Minamata Select the correct option.Anonymous voting
- 1 and 3
- 1 and 2
- 3 only
- 1, 2 and 3
6. Which of the following are correct about the in-situ conservation?
1. It includes conservation of only terrestrial animals and plants.
2. Biosphere reserves, wildlife sanctuaries are part of in-situ conservation Select the correct optionAnonymous voting
- 1 only
- 2 only
- both
- none
9. Which of the following are the causes of coral bleaching?
1. Excessive sedimentation in the reef ecosystem
2. Excess nutrients like ammonia and nitrates entering the reef system 3. Increased exposure to Ultraviolet (UV) radiationAnonymous voting
- 1 only
- 1 and 2
- 2 only
- 1, 2 and 3
10. Which of the following are the possible consequence of high usage of nitrogen based fertilizers?
1. Loss of soil organisms
2. Increased growth of non-native plants 3. Blue baby syndrome in human babies Select the correct option.Anonymous voting
- 1 and 2
- 1, 2 and 3
- 2 and 3
- 1 and 3
8. Which of the following are correct about the ecological pyramids?
1. In an aquatic ecosystem, the pyramid of biomass is always upright.
2. In all ecosystems of the world, the pyramid of numbers is always upright.
3. In a terrestrial ecosystem, the pyramid of energy is always inverted.
2. Which of the following are correct about the Biological Oxygen Demand (BOD)?
1. It is the amount of oxygen required for microorganism to decompose organic matter in the water.
2. Clean water has a greater value of BOD than polluted water.Anonymous voting
- 1 only
- 2 only
- both
- none
1. How many of the following types of radiations
are the sources of radiation pollution?
1. Cosmic radiations 2. Ultraviolet radiations 3. Nuclear weapons 4. Mining of radioactive materials Select the correct option.Anonymous voting
- only one
- only two
- only three
- all four
5. Methane, a greenhouse gas is produced naturally from which of the following sources?
1. Paddy fields
2. Coal mines 3. Garbage dumps Select the correct option.Anonymous voting
- 1 only
- 2 and 3
- 2 only
- 1, 2 and 3