Hydrogen bonds between different parts of the polypeptide chain result in which level of protein structure?

preservation because he preserves part of the land and preserves means save

explanation:

answer: c

explanation:

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.