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The microbes and plants can be used to clean dirt,
for example, cleaned using a bacteria contaminated with nitrates
water or to use plants to absorb arsenic from32
contaminated soil.
D.There's an idea planted gardens on the roof houses. They absorb heat,
reduce impact carbon dioxide gas, emit oxygen, and
also helps to reduce using the air conditioning in summer.
E.Oceans cover more than 70 percent of the Earth's surface. Wave
bear a energy, which you can send to the turbine,
which can then convert this mechanical energy into
electrical energy. The difficulty in that,That sometimes waves are too small,
to generate enough power.
F. The largest solar collector on Earth - the world ocean.
according to American ministry of energy, the oceans
Absorb enough heat from the sun equal to the thermal energy,
contained in 250 billion barrels of crude oil a day. Technology
ocean thermal energy conversion to electricity
Uses the difference in temperature hotplate water on the surface and
cold ocean floor.
G. Solar energy, which is put into the ground in the form of a photon,
can be converted into electricity or heat with the
Solar panels, solar thermal collectors, mirrors, and
parabolic dish.
H. Hydrogen fuel cells are environmentally clean
an alternative to fossil fuels. Water is carried out by
Integration of hydrogen and oxygen. In the process there is a
electricity. The problem with this technology is getting
hydrogen. Molecules, such as water and alcohols should be
processed to remove hydrogen.Some of these processes
requires the use of other sources of energy, which is often
reduces the benefits of this fuel. Scientists had already invented, as
to apply fuel elements for power supply notebook and
Small devices, and some automotive companies
promise, that we will soon see vehicles, which do not emit
nothing, except with clean water.
I. According to the United Nations, the lack of water
Will be a problem for the billions of people to the middle of this century. 33
Desalination, i.e. removing salt and minerals from sea water,
can provide drinking water in those parts of the world, where its stocks
are limited.
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