Answer:
Option (D)
Explanation:
Greenhouse gases are gases that are resent in the atmosphere in a certain composition and are responsible for the cause of climate change. These gases are such as Carbon dioxide (CO₂), Water vapor (H₂O), Methane (CH₄) and Chlorofluorocarbon (CFC). A small increase in the concentration of these greenhouse gases can have a direct effect on the earth, by increasing the earth's global surface temperature as a result of which the ice sheets in the polar region will melt and the sea level will increase.
The effect of increasing greenhouse gas will have an inverse effect on the rate of thermohaline circulation. Thermohaline circulation refers to the large-scale motion of ocean water (circulation of oceanic water) that is controlled by the global density gradients which occur because of the surface heat and the freshwater fluxes. The rate of circulation of these water from the equator to the poles and from the poles to the equator will extensively decrease if there increases the greenhouse effect.
Thus, the correct answer is option (D).
