Where the water table is deep in the ground, the land is dry. Runoff from rainstorms carries chemicals from the soil to the ocean. Write the definition for each. It evaporates from the ocean. See semi-arid and arid climates.
Plankton is the bottom of the ocean food chain.
Sea life depends on it for survival. They are all formed by moist air cooling enough to form clouds. Cumulus, cirrus, and stratus. Usually on a bright, sunny day. Cumulonimbus and nimbostratus.