What happens in a photic part of a body of water

Photosynthesis occurs in the photic part of a water body.

Explanation:

The word photic means light. The photic part of a water body is the part of the water body into which light can penetrate. It usually extends from the surface until the part of the water body where light penetration is only about 1% of the light penetrating the surface.

Photosynthetic organisms are found here because they utilize the light from the sun for photosynthesis.

a community that experiences major changes undergoes progress

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.