The materials of the crust have less mass than materials deeper in the earth.

True
False

Which tool could you see a plant cell? a. a filter b. a microscope c. a microwave d. an electromagnet

The climate on the leeward side of a mountain differs from that on the windward side mostly in

After a group of researchers conducts a new experiment that has never been conducted before, what is the best way for other scientists to make sure that the data is real