The uneven heating of the atmosphere by the sun's energy creates pressure differences.
Which effect is a direct result of this?
formation of clouds
O generation of winds
occurrence of lightning
an increase in humidity

O generation of winds

Explanation:

The uneven heating causes temperature differences, which in turn cause air currents (wind) to develop, which then move heat from where there is more heat (higher temperatures) to where there is less heat (lower temperatures). The atmosphere thus becomes a giant "heat engine", continuously driven by the sun.

i'm not sure

explanation:

i'll try whatever you got