Answer:
Energy that comes from a natural "renewable" source or processes that are constantly replenished
Explanation:
Examples could be solar energy, wind energy and hydro energy. Each come from a natural resource.
Plants get nitrogen from the soil but it has to be turned into nitrates (by lighting or nitrogen fixation); this because nitrogen in the air is very unreactive, Then the animal eats the plant.
Bacteria can get nitrogen simply from the air
D. Phytoplankton are most efficient
Answer:
carbon dioxide, methane, nitrous oxide, water vapor
Explanation:
these all are greenhouse gases
hope this helps :)
