___is a set of instructions that a computer needs to carry out tasks.​

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.

Explain why components that are naturally found in air can be considered air pollutants.

Physical features of central america look at the map above which of the following is true