In what layer of the epidermis does mitosis
occur?

Mitosis occurs in the deepest layer of the epidermis, which is called the stratum basale.

b is the correct answer

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.