What happens as warm air is less dense, what tends to in the atmosphere.
This is for science

A. Sink

B. Rise

C. Stay the same

Vessels draining the myocardium of the heart, open primarily ,into which chamber?

Fossils of ancestors of the modern horses show a small 4-toed almost dog-like browsing animal named eohippus over time the horses got larger lost toes and changed to a grazing diet what is the best explanation of why this change occurred

Which of the following do all living things have in common