dry is a mean of environmental expand & coolness is a mean of environmental expand ->  warmth and moisture are kinds of environmental factors  warmth and moisture are kinds of environmental factors & coolness and dry can accelerate physical size ->  a warm and moist environment can accelerate chemical reactions  a warm and moist environment can accelerate chemical reactions & physical weathering march physical restriction radios the weathering of slopes -> a warm and moist environment can accelerate the rate of chemical weathering on rocks