Which phrase describes air density? EO
increases as altitude increases
equals mass divided by volume
pushes molecules in one direction
exerts less pressure as it increases

the answer is c) an oak tree

the tricuspid valve is present between right atrium and right ventricle

the answer

b.) bowling ball

here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.