How many sections does a river have and what are there names

Which statement about glaciers is true? a. glaciers can only be found high up in mountains. b. glaciers have snow all year round, except during july. c. there are two types of glaciers: alpine and continental. d. glaciers can only be found near earth's north and south poles.

Evaporite rocks te more permeable than reef rocks true false

Heyi am new to are you all americans? ( just want to know , i don't mean any offence ) ?