Question

Which of the following is the most widely discussed impact of climate change \[?\]
A.Increases in average sea level
B.Deforestation
C.Soil erosion
D.None of the above

Answer 1

Hint: Climate change includes both global warming and the resulting large-scale shifts in weather patterns. It refers to a particular location or the planet as a whole. Simply, change in global or regional climatic patterns is called climate change.

Complete answer:
Global warming is caused mainly by human-induced emissions of greenhouse gases. Greenhouse gases include water vapour, carbon dioxide, methane, nitrous oxide, ozone and some artificial chemicals such as chlorofluorocarbons. The absorbed energy warms the atmosphere and the surface of the Earth. Then a warming climate can cause seawater to expand and ice over land to melt, both of which can cause a rise in sea level. Hence, the main impact of climate change is the increase in sea level.
Hence the correct option is (A) Increase in average sea level.

Note:
Greenhouse gases are emitted by burning fossil fuels, releasing chemicals into the atmosphere. Also reducing the amount of forest cover, and the rapid expansion of farming, development, and industrial activities are releasing carbon dioxide into the atmosphere and changing the balance of the climate system.