The greatest biodiversity on the earth is found in:
1. | African grasslands |
2. | Amazonian rain forest in South America |
3. | Western Ghats in India |
4. | Nile delta in Egypt |
The biodiversity hotspots in India include all the following except:
1. | Western Ghats and Sri Lanka | 2. | Indo-Burma |
3. | Himalayas | 4. | Deccan plateau |
What percent of earth’s area is covered by hotspots of biodiversity?
1. | less than 2 | 2. | about 7 |
3. | about 11 | 4. | more than 16 |
According to your NCERT text, the number of biosphere reserves, national parks and wildlife sanctuary in India are respectively:
1. | 14, 90 and 448 | 2. | 11, 98 and 440 |
3. | 15, 101 and 403 | 4. | 13, 92 and 427 |
Earth Summit 2012 was held in:
1. | Rio | 2. | Johannesberg |
3. | Paris | 4. | Geneva |
The historic convention on Biological Diversity held in Rio de Janeiro in 1992 is known as:
1. | CITES Convention | 2. | The Earth Summit |
3. | G-16 Summit | 4. | MAB Programme |
Assertion (A): | There is a steady increase in species richness from the arctic to the tropics. |
Reason (R): | Seasonal variation is substantially more in tropics than in arctics. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
Assertion (A): | Species diversity contributes to the well-being of an ecosystem. |
Reason (R): | Rich biodiversity contributes to higher productivity of an ecosystem. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
Assertion (A): | Ex-situ conservation, while helpful in humankind's efforts to sustain and protect our environment, is rarely enough to save a species from extinction. |
Reason (R): | It is to be used as a last resort, or as a supplement to in-situ conservation. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
Consider three sample areas with the following composition:
Sample area I: | has three species of birds, two are represented by one individual each and the third by four individuals |
Sample area II: | has three species of birds, each represented by two individuals |
Sample area III: | has a species of insects, a species of mammals and a species of birds, each with two individuals |
Which area will be considered as the most diverse?
1. Sample area I
2. Sample area II
3. Sample area III
4. Sample area II and Sample area III are equally diverse