physical weathering is also referred to as mechanical weathering. it involves the mechanical breakdown or disintegration of exposed rock Institute
temperature is an important fact of physical weathering. It occurs when rocks are broken down as a result of alternating expansion and contraction of rocks surfaces due to temperature changes .
Physical geography focuses on natural processes of the earth, including climate and plate tectonics, whereas human geography studies the effect and behavior of humans and how they relate to the physical world. The two fields of geography are interrelated.
A car was invented to run on only water and nothing else so that the air pollution can be decreased because then no smoke would come out of the exhaust.