AP BIOLOGY

Detailed explanation-1: -Trees are also very important for us as a renewable resource. Trees are a natural resource that can be renewed-by the planting of trees-replacing the trees that are harvested for use by people. We depend on forest products for things like the wood we burn for heat and the wood we use to make houses and furniture.

Detailed explanation-2: -Trees are a natural resource that are renewed. Since 1940, we have grown more trees each year in America than we have used for making paper, houses, books and other things we use every day. Almost a third of the world’s total land area is covered by forests.

Detailed explanation-3: -So, trees can be an ideal source of renewable energy if they are properly managed. Besides providing fuel and reducing carbon emissions, they can perform an important function of recycling nutrients from the subsoil to the topsoil. The trees that are cut down can be replanted.

Detailed explanation-4: -Renewable resources include solar energy, wind, falling water, the heat of the earth (geothermal), plant materials (biomass), waves, ocean currents, temperature differences in the oceans and the energy of the tides.

Detailed explanation-5: -Renewable resources include biomass energy (such as ethanol), hydropower, geothermal power, wind energy, and solar energy.