| 2281 |
In Malthus’s theory, famine and epidemics that raise the death rate are called: |
Environmental Studies
Human populations |
Medium |
| 2282 |
The maximum population that an environment can support for a long time without being degraded is its: |
Environmental Studies
Human populations |
Easy |
| 2283 |
Which thinker argued that population pressure encourages farmers to adopt more intensive and better farming m… |
Environmental Studies
Human populations |
Medium |
| 2284 |
In the equation I = P × A × T, the term A shows that environmental impact depends on: |
Environmental Studies
Human populations |
Hard |
| 2285 |
In which stage of the demographic transition does a population grow most rapidly? |
Environmental Studies
Demographic transition |
Easy |
| 2286 |
In Stage 1 of the demographic transition, birth and death rates are: |
Environmental Studies
Demographic transition |
Easy |
| 2287 |
Which factor most directly causes the death rate to fall in Stage 2? |
Environmental Studies
Demographic transition |
Medium |
| 2288 |
Which change most helps to lower the birth rate in Stage 3? |
Environmental Studies
Demographic transition |
Medium |
| 2289 |
A country has a birth rate of 11 and a death rate of 12 per 1,000, and its population is slowly shrinking. It… |
Environmental Studies
Demographic transition |
Hard |
| 2290 |
The S-shaped (logistic) growth curve levels off when the population reaches: |
Environmental Studies
Population regulation |
Easy |
| 2291 |
For a population with r = 0.2 per year, N = 200 and K = 1,000, what is the logistic growth rate dN/dt? |
Environmental Studies
Population regulation |
Hard |
| 2292 |
J-shaped population growth is expected when: |
Environmental Studies
Population regulation |
Easy |
| 2293 |
Which of these is a density-independent factor? |
Environmental Studies
Population regulation |
Medium |
| 2294 |
In the logistic model, a population grows fastest when its size N is equal to: |
Environmental Studies
Population regulation |
Medium |
| 2295 |
Which is considered the single largest cause of biodiversity loss worldwide? |
Environmental Studies
Threats to ecosystems |
Easy |
| 2296 |
When farmers replace many local crop varieties with a few high-yielding varieties, the resulting loss of gene… |
Environmental Studies
Threats to ecosystems |
Medium |
| 2297 |
Lantana and water hyacinth spreading in Indian forests and lakes are examples of: |
Environmental Studies
Threats to ecosystems |
Easy |
| 2298 |
A parasite that can live only on one host species dies out when the host becomes extinct. This is called: |
Environmental Studies
Threats to ecosystems |
Medium |
| 2299 |
Public protest in Kerala led to a planned hydroelectric project being dropped and the area becoming a nationa… |
Environmental Studies
Threats to ecosystems |
Hard |
| 2300 |
The National Forest Policy of 1988 aims to bring what share of India’s land area under forest or tree cover? |
Environmental Studies
Forest conservation and conflicts |
Easy |