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MCQs on Natural Resources
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MCQs on Natural Resources
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1. Aquatic organisms are used to a certain range of temperature in the water bodies where they live. A sudden marked change in this temperature can affect. i. Breeding of animal. ii. Growth of the aquatic plant. iii. Process of digestion in animal. iv. Availability of nutrient. Choose the correct option from the following:>
2. If the carbon dioxide content in the atmosphere is increased then which one of the following would not get affected?
3. Presence of the fertilizers and sewage in polluted water provides a lot of nitrogen, causing excessive growth of algae which subsequently reduces the amount of dissolved oxygen in water.Can you name this process of reduction of dissolved oxygen due to the excess growth of algae.
4. Ozone layer is a protective blanket in the atmosphere that protectsus from the harmful high energy UV radiations coming from the sun. But it has been observed that some harmful air pollutants like chlorofluorocarbons are causing hole in this protective layer. What does this ‘ozone hole’ exactly mean?"
5. The process of nitrogen fixation by bacteria does not take place in the presence of:
6. A cool breeze after a hot day brings all of us considerable relief. This breeze is actually the moving air. What is the basic process that causes this movement of air?
7. There is always a cycle of CO2 running in the atmosphere due to which the concentration of CO2 remains constant in the atmosphere. Choose the correct sequence of this cycle:
8. Presence of the fertilizers and sewage in polluted water provides a lot of nitrogen, causing excessive growth of algae which subsequently reduces the amount of dissolved oxygen in water.Can you name this process of reduction of dissolved oxygen due to the excess growth of algae.
9. The nitrogen molecules present in air can be converted into nitrates by:
10. The ‘water pollution’ can be defined in several ways. Which of the following statements does not give the correct definition?
11. You must have observed that during the winters sometimesit becomes quite difficult to see even the objects short distance apart. This low visibility during the cold weather is due to:
12. The process of nitrogen fixation by bacteria does not take place in the presence of:
13. Aquatic organisms are used to a certain range of temperature in the water bodies where they live. A sudden marked change in this temperature can affect. i. Breeding of animal. ii. Growth of the aquatic plant. iii. Process of digestion in animal. iv. Availability of nutrient. Choose the correct option from the following:>

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