Describe the hormones that regulate water retention and release in the body and discuss how the kidneys filter out materials from the blood as well as regulate fluid and mineral composition.

the answer is c. altitude. hope this ! #brainiac

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.