1. Which statement is true?
20% of total water is in the form of frozen ice caps
80% is in the oceans
1% as freshwater lakes, streams, and rivers
10% is in canals
✅ The correct answer is option C.
Man and His Environment MCQs
2. Which one is a non-renewable resource?
Wildlife
Forests
Natural gas
Land
✅ The correct answer is option C.
3. Process that supplies food to living things through decaying and decomposition is called
Food cycle
Nutrient cycle
Dead-live cycle
None of these
✅ The correct answer is option B.
4. Balance in the nutrient cycle can be upset when
Too much food is consumed
Not enough food is produced
Decayed nutrients are not returned to the ground
All of these
✅ The correct answer is option D.
6. In air % of oxygen and carbon dioxide is
Oxygen 20%, CO2 0.03%
Oxygen 50%, CO2 50%
Oxygen 30%, CO2 0.05%
Oxygen 25%, CO2 0.02%
✅ The correct answer is option A.
7. Water constitutes –% of body weight?
25-30%
70-90%
10-30%
30-50%
✅ The correct answer is option B.
8. The total area of the world under cultivation is
5%
11%
21%
31%
✅ The correct answer is option B.
9. Wildlife refers to
All plants of the world
All non-cultivated plants
Nondomesticated animals
Both B and C
✅ The correct answer is option D.
10. Endangered species are
Dangerous for the life of humans
Reduced in number
Already extinct
All of these
✅ The correct answer is option B.