carta del 2070

Comment: this video shows how life will be without water in the year 2070 and not have to pass it as? not wasted, that life would be very different habris paca vegetation and water would have no women would have to shave him for not washing hair and conserve water, rivers, dams, lakes, waterfalls, and not exist, would have almost no oxygen for both little vegetation, all would be burned by the coat and opened Osona finish. we must also look after the vegetation does not try to pollute.


-Solution:The solution would be not to waste more water does not leave the keys and opened last bañandonos ytratar least not votandola to preserve, for without it we could not do anything as it does not show the video, and try to take care of the vegetation or polluting resiclando.

matler

what is matler?
Everything that soraun us is made up matler.there air,the animals ,rock plants verything . with cow define matler as all that occupies as spase and can be weigh and flated baloim , we can se that weighed slightly more than un - inflated ballon . when we are studing matler , we use sam basic quantities such as length , surfase , ared , volume, mass, density or temperature . So that we are all using the same units inside we use what is could the international sistem of units .

Dimensions:
Length (l) is the distance betuin two bodies , in (si) units this is measured in metres (m) we also use centrimetres (cm) or kilometres (km) . ew use rules , measuring tapes and so ons when we are measuring length.

Surfase area (s) is the espace ocupied by two dimensions means and with. In (si) units we measuring surfase area is kuare metres (m2) another come units is kuares centrimetres (cm2).

Volume (v): is the space ocupiet by a bodi .if the poten measured in litres eveng in the (si) units is the (m3) the volume or licuis or solides come by measured using measuring sylinder in cas of regular geometry chapes we can use matematical formulas for example: the volume of sphere whit radius are its V5phar=4/3 p,3.

Tidal power

Even the power of the tides can be harnessed to produce electricity.

Similar to the more conventional hydroelectric dams, the tidal process utilizes the natural motion of the tides to fill reservoirs, which are then slowly discharged through electricity-producing turbines. The former USSR produced 300 MW in its Lumkara plant using this method.

Tidal power

Geothermal energy

Geothermal energy is an alternative energy source, although it is not resourceful enough to replace more than a minor amount of the future's energy needs. Geothermal energy is obtained from the internal heat of the planet and can be used to generate steam to run a steam turbine. This in turn generates electricity, which is a very useful form of energy.

geothermal energy

Wind power

Wind power is another alternative energy source that could be used without producing by-products that are harmful to nature. Like solar power, harnessing the wind is highly dependent upon weather and location. The average wind velocity of Earth is around 9 m/sec. And the power that could be produced when a wind mill is facing the wind of 10 mi/hr. is around 50 watts.1