parts of earth's that supply materials useful or necessary for the survival of living organisms
natural resources, such as water, sunlight, and crops, that are constantly being recycled or replaced by nature.
natural resources such a petroleum, minerals, and metals, that are used more quickly than can be replaced by natural processes
nonrenewable resourse formed over hundreds and millions of years mostly from the remains of microscopic marine organisms buried in earth's crust.
nonrenewable energy resources-coal,oil, and natural gas-that formed Earth's crust over hundreds and millions and years.
electricity produced when the energy of falling water turns the blades of a generator turbine.
energy produced by the splitting apart of billions of uranium nuclei by nuclear fission reaction
heat energy within Earth's crust, available only where natural geysers or volcanos are located
precipitation with a pH below 5.6 which occurs when air pollutants from the burning of fossil fuels react with water in the atmosphere to form strong acids- that can pollute water, kill fish and plants, and damage soils
heat-trapping feature of the atmosphere that keeps Earths warm enough to support life.
thinning of the Earth's ozone layer caused by chlorofluorocarbons (CFCs) leaking into the air and reacting chemically with ozone, breaking the ozone molecules apart.
waste materials, such as pesticides and leftover paints, that are harmful to human health or poisonous to human living