Why is malaria so common in africa and south of the sahara

How do ocean currents affect temperature? check all that apply. they carry cold water from the poles to the equator and cool air over land. they flow north and then south below the equator. they flow south and then north above the equator. they move warm water from the equator to the poles and heat air over land. they move east to west and create prevailing winds. they move west to east and create seasonal winds.

The red square is a famous historical site that is located in

Witch of the following volcano hazards is made up of rocky particles about the size of a grain of sand