Earths sources of concentrated usable are being depleted. These are mainly fossil fuels that are running out. However there is still wind, water and solar energy.
oxygen
nuclear power is going to be around for much longer, more fission reactors will be built to compensate in the increase in energy usage and more research is being done to make fusion energy which will replace fission reactors(this is quite a while yet before fusion reactors can be used to produce use usable energy for long periods of time).
Includes any ores or minerals that are being removed at or below the surface of the Earth, processed into a usable form, used, then burned for energy or placed in areas of disposal after use. Coal would typically be a good example.
its kinetic energy ;)
Geothermal energy presently is being used in Hawaii and in parts of the western United States.
it is formed by being burned which causes heat, which can also be converted into motion energy.
Anywhere from 10-23% of sunlight is converted into "usable" electricity.
Energy conservation is that energy cannot be created or destroyed it can be transferred or transformed. We conserve energy no matter what we do. What we are really being told is to conserve usable energy which is energy not in the form of heat. We are told this to avoid the heat death of the universe this is when all the usable energy is lost due to heat.
You can look the up, for example in Wikipedia, for a detailed definition. Informally, you can think of them as two "laws of energy": 1) Energy conservation (energy can't be created or destroyed) 2) Usable energy is constantly being converted into unusable energy. This will continue until no more usable energy is left.
Ozone is being depleted by CFC's. They react with ozone and deplete it.
Ozone layer is being depleted by CFC's. They react with ozone and decompose it.
Some consequences of ozone being depleted are. Floods, global warming etc.
The stratosphere is depleted due to CFC's. They deplete the ozone present in the stratosphere.
the trees in the rain forest don't have branches because all the energy is concentrated on being so tall.
Ozone layer is a layer of earth. It is being depleted. The reason is CFC.
Earth's atmosphere is being depleted due to the industrialization. This causes the dangerous rays of the sun to enter in.
Currently Hawaii is not using tidal energy, although a pretty effective renewable energy source the tides in Hawaii are not strong enough to generate enough usable energy thus would be ineffective.