Ecology
Cycles That Occur in Nature. Water cycle Moves between atmosphere, oceans & land 1 – water evaporates from the ocean 2 – water also evaporates.
Nitrogen gas returns to the atmosphere by the action of 1.nitrogen fixing bacteria. 2.denitrifying bacteria. 3.nitrifying bacteria. 4.nitrate fertilizers.
Nitrogen gas returns to the atmosphere by the action of
