7. Increased and
dries out the ground
leaving
water to move to the atmosphere fewer clouds and less
precipitation, which can lead to

Increased  evaporation and transpiration  dries out the ground  leaving  less water to move to the atmosphere fewer clouds and less  precipitation, which can lead to drought conditions.

In some areas evaporation and transpiration from plants can be so high that the amount of water available to move to the atmosphere is significantly reduced. This is usually the case in areas that are lacking in open water resources.

As there is less water moving to the atmosphere, there will be less water condensing into clouds and thus less rain. If this persists, it can lead to a drought.

answer; i believe that the correct answer is (light);

the index of refraction of the second medium is higher. i just took the test trust me !