Answer:
1)The heat from the sun is one of the causes of rainfall.
2) It also causes thermal equilibrium on the earth's surface.
Explanation:
1) Heat from the sun heard of the water bodies, covers some to vapor which is taking up too form rains and snow.
2) Without the heat of the sun the only source of heart for the earth would be the geothermal heat (ie. the heat from within the earth). This type of heart wouldn't be enough to keep us warm because of the presence of the glaziers
