After the Big Bang occurred, scientists think that the universe. A) Started to expand.

B) Grew less dense.

C) Began to cool.

D) All of these.

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.

Why is the improved education of girls so important, especially with regard to economics and health? what are the leading causes of death among teenage girls in africa and how are they tied to education?

What's erosion? a. the breakdown of rock into smaller pieces b. the removal of weathered products from rock c. a change in rock resulting from exposure to water d. a chemical change in rock that weakens it