Entry Test MCQ :: Man and His Environment
|
|
|
|
|
21. |
In 1947 population of Pakistan was |
A. |
32.5 million |
B. |
35.5 million |
C. |
40.5 million |
D. |
45.5 million |
Answer: Option A
Explanation:
|
22. |
Rate of population growth in 1980s was |
Answer: Option C
Explanation:
|
23. |
Replantation of plants in the areas where they were present earlier is called |
A. |
Deforestation |
B. |
Aforestation |
C. |
Forestation |
D. |
Reforestation |
Answer: Option D
Explanation:
|
24. |
Establishment of new forests where no forests existed previously is called |
A. |
Reforestation |
B. |
Forestation |
C. |
Neofrestation |
D. |
Aforestation |
Answer: Option D
Explanation:
|
25. |
Which is environmental buffer? |
A. |
Mountains |
B. |
Deserts |
C. |
Forests |
D. |
Oceans |
Answer: Option C
Explanation:
|
26. |
About half of the rain which falls in tropical forests comes from |
A. |
High winds |
B. |
Cold surroundings |
C. |
Transpiration of plants |
D. |
Surrounding seas |
Answer: Option C
Explanation:
|
27. |
Biodiversity is |
A. |
Total number of species in a community |
B. |
Total number of species in an ecosystem |
C. |
Total number of genus in an ecosystem |
D. |
None of these |
Answer: Option B
Explanation:
|
28. |
Which statement is not true about ozone? |
A. |
Bluish |
B. |
Explosive |
C. |
10-50 km |
D. |
O2 |
Answer: Option D
Explanation:
|
29. |
Ozone depletion is commonly caused by |
A. |
CFCs |
B. |
Industrial smoke |
C. |
Heavy nitrogen gasses |
D. |
Carbon dioxide |
Answer: Option A
Explanation:
|
30. |
Diseases caused by UV rays in humans |
A. |
Skin cancers |
B. |
Cataracts |
C. |
Night blindness |
D. |
Both a and b |
Answer: Option D
Explanation:
|
Read more:
|
|