Dna coils tightly during division and assembles into visible?

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.

its b. greenhouse gasses trap uv rays for heat so that the plants stay alive.

answer; ///segregation;