When the cell excretes sodium from within against the natural tendency of matter it is performing

Which of the following is a way that minerals are used? a. industry construction technology d. all of the above

What was the land like over 500 million years ago? what was under the sea?

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.