The concept of Greenhouse gases (GHGs) was postulated by Joseph Fourier. It indicates the group of gases through which Green House Effect (GHE) is caused. All greenhouse gases together from a layer which helps in trapping of outgoing isolation solar radiations and keep the earth warm and habitable.

Correct Option: C

The concept of Greenhouse gases (GHGs) was postulated by Joseph Fourier. It indicates the group of gases through which Green House Effect (GHE) is caused. All greenhouse gases together from a layer which helps in trapping of outgoing isolation solar radiations and keep the earth warm and habitable.

Carbon dioxide causes the highest percentage (i.e., about 60%) of greenhouse effect, the enhanced greenhouse effect is known as Global warming. Global warming is Progressive heating of earth's atmosphere because of enhanced trapping of solar radiation.

Correct Option: A

Carbon dioxide causes the highest percentage (i.e., about 60%) of greenhouse effect, the enhanced greenhouse effect is known as Global warming. Global warming is Progressive heating of earth's atmosphere because of enhanced trapping of solar radiation.

The United Nations convention on climate change ratified by more than 50 countries became effective on March 21, 1994. To cooperatively consider what they could do to limit the increase in the global temperature and the resulting climate change, and to cope with whatever impacts were, inevitable then in 1992. countries joined an international treaty, the United Nations Framework Convention on Climate Change.

Correct Option: A

The United Nations convention on climate change ratified by more than 50 countries became effective on March 21, 1994. To cooperatively consider what they could do to limit the increase in the global temperature and the resulting climate change, and to cope with whatever impacts were, inevitable then in 1992. countries joined an international treaty, the United Nations Framework Convention on Climate Change.

All the above factors are responsible for climate change. Both Greenhouse gases and Depletion of ozone layer ultimately lead to Global warming, which is the most important factor of climate change. The pollution also plays big role in climatic change as the source of acid rain, biodiversity loss and other climatic disturbances.

Correct Option: D

All the above factors are responsible for climate change. Both Greenhouse gases and Depletion of ozone layer ultimately lead to Global warming, which is the most important factor of climate change. The pollution also plays big role in climatic change as the source of acid rain, biodiversity loss and other climatic disturbances.