What happens to energy from the sun that is neither reflected or absorbed by the atmosphere

Why does physical weathering speed up the processes of chemical weathering? a) physical weathering requires abundant water, as does chemical weathering. b) physical weathering produces fresh surfaces for chemical weathering to attack. c) chemical weathering can occur only on small surfaces, not large ones. d) chemical weathering requires salt, which is provided by salt wedging.

Scientist believe that earths core is around 6000°c where does this heat come from

Asap! ! ! ! true or false the gobi desert, the largest desert in asia. covers parts of northern china and southern russia