(_______________)- Water (oceans, lakes, rivers, groundwater, glaciers)

(_______________)- Air (oxygen, nitrogen, water vapor, zone, wind)

(_______________)- Life (plants, animals, insects, humans)

(_______________) Water in a lake becomes groundwater (_______________).

(_______________) Ocean water evaporates into the air (_______________).

(_______________) Groundwater is absorbed plants into their roots (_______________).

(_______________) Humans breathe in oxygen (_______________).

(_______________) Oil wells burn fossil fuels (_______________).

(_______________) River deposits sediment (_______________).