Which of these is not an environmental effect of destroying wetlands
a. loss of habitat
b. increased air temperature
c. poor absorption of rain water
d. unfiltered water

(B) Increased air temperature

Explanation:

 Increased air temperature is not affecting and destroying the wetland as increase in the temperature of the air are not related to the destroying wetland. The wetland destruction increased the water pollution, flood and the reduce the population of the wildlife.

 All the other options such as loss of habitat, un-filtered water and reduce in the absorption of the rain water are the main cause of the wetland reduction process.

Therefore, Option (B) is correct.