why is nuclear energy a nonrenewable resource
All life on earth is sustained by energy from the sun. Plants and animals can store energy and some of this energy remains with them when they die. It is the remains of these ancient animals and plants that make up
fossil fuel Fuels such as coal, gas and oil which are mined from the earth and burned to produce energy. They are formed from broken down animals and plants that died a very long time ago. non-renewable A resource that cannot be replaced when it is used up, such as oil, natural gas or coal. because they will run out one day. Burning fossil fuels generates greenhouse gas Naturally occurring gases in the atmosphere such carbon dioxide, methane and nitrous oxide. They are believed to have increased through burning more oil, petrol, and coal. unsustainable Resources which cannot be used forever and cannot be replaced or recycled after they are used.
The use of fossil fuels is unsustainable for example. Hence the need to find more renewable, sustainable ways of generating energy. Renewable or infinite energy resources are sources of power that quickly replenish themselves and can be used again and again. Some resources can be thought of as both renewable and non-renewable. Wood can be used for fuel and is renewable if trees are replanted. Biomass, which is material from living things, can be renewable if plants are replanted. How long will fossil fuels last? Estimates from international organisations suggest that if the world's demand for energy from fossil fuels continues at the present rate that oil and gas reserves may run out within some of our lifetimes.
Coal is expected to last longer. You probably know that most of the electricity you use is produced in a power plant and travels to your home and school through special wires. But do you know what energy sources are used to run power plants? Energy resources can be divided into two categories: nonrenewable and renewable. Nonrenewable resources A nonrenewable resource is a resource that can be used up. , which include, and, are nonrenewable because it took millions of years for them to form. Once we use up our fossil fuels, they will be gone for good. Many power plants use fossil fuels. The fossil fuel is burned to produce heat, which is used to make steam.
The steam is then used to turn the blades of a. Some power plants run on, which is another nonrenewable resource. Nuclear power plants rely on uranium, a type of metal that is mined from the ground and specially processed. Heat released from splitting uranium atoms is used to convert water into steam that turns turbines. Renewable resources A renewable resource is fairly easy to replace. Renewable energy resources include wood, wind, sunshine, geothermal energy, biomass and water stored behind dams in lakes and. Electricity can be produced using several kinds of renewable resources. Wind energy can produce electricity in regions where steady winds blow. Giant wind turbines capture the wind's energy and use it to power generators.
Biomass is material that is formed from living organisms, such as wood or agricultural wastes. Biomass can be burned to produce electricity, or converted to a gas and used for fuel. Geothermal energy uses hot water or steam from deep beneath the earth's surface to produce electricity. Hydroelectric power is generated using the energy created by falling water to spin the generator turbines of hydroelectric power plants and make electricity. Solar energy can also be used to produce electricity. change the of the sun into. Some calculators and portable radios are powered by solar cells. , or modules, placed on a rooftop can supply electricity to the building below.
- Views: 334
why do we use non renewable resources
why do we need to use renewable energy
why was there no oxygen in the early atmosphere
why is petroleum called a fossil fuel
why do we need alternative energy sources