_______ is the cost of next best alternative sacrificed in order to take benefit of one given opportunity.

1. Absorptive capacity.
2. Carrying capacity.
3. Assimilation capacity.
4. Opportunity cost.

In areas where speed of wind is usually high, wind mills can provide electricity without any adverse impact on the environment but it's not yet been explored on a large scale. What is the correct reason out of the following?

1. Lack of technological devices.
2. High cost.
3. Non-availability of land.

1. Only 2
2. Both 1 and 2
3. Both 2 and 3
4. All of these.

The environment performs four vital functions and the environment is able to perform these functions without any interruption as long as the demand on these functions is within its carrying capacity. 'In the given statement carrying capacity' implies to:

1. The resource extraction is not above the rate of regeneration.
2. Wastes generated are beyond the absorptive capacity of the environment.
3. The resource extraction is not below the rate of regeneration.
4. The resource and the wastes generated are within the assimilating capacity of the environment.

1. 1, 2 and 4
2. Both 2 and 4
3. Both 1 and 4
4. All of these.

Which of the following movement is associated with preventing cutting of trees?

1. Chipko Movement.
2. Appiko Movement.
3. Both of the above.
4. None of the above.

Out of the following, which is not the function of environment?

1. It supplies resources.
2. It assimilates waste.
3. It sustains life by providing non-genetic and non-biodiversity.
4. It provides aesthetic services like scenery.

Use of non-conventional sources of energy is strategy for sustainable development. Out of the following what are the non-conventional sources of energy?

1. Crude oil.
2. Solar.
3. Wind.
4. Wood.
5. Coal.
6. Nuclear.

1. 1, 2, 3, 4, 5 and 7
2. 2, 3, 4, 5, 6, 7
3. 1, 2, 3, 4, 5
4. 2, 3 and 6

Which of the following statement is correct?

1. Global warming is entirely a natural phenomenon.
2. Global warming is simply an another term used for green house effect.
3. Global warming is the rise in average temperature at the earth's surface.
4. Global warming is caused by ozone depletion.

In 1997, a UN conference on climate change was held in:

1. Japan.
2. India.
3. Germany.
4. China.

India has ______% of human and ______% of livestock population with only ______% of land area.

1. 20, 16.6, 2.5
2. 16.6, 20, 2.5
3. 2.5, 16.7, 20
4. 20, 25, 2.5

The ________ of the environment implies that the resource extraction rate is not above the rate of resources regeneration.

1. absorptive capacity.
2. carrying capacity.
3. assimilation capacity.
4. opportunity cost.