External ways of getting energy

There are different and more efficient ways of achieving energy. Some of those ways are though Wind Energy, Solar Energy, Geothermal Energy, Hydroelectric Energy and Biomass Energy.

  -Wind Energy: It's a group of machines which turn wind power into electricity. But it has a problem, it's very expensive.



  -Solar Energy: Solar energy is the energy you achieve from the sun.

 
  -Geothermal Energy: This energy is the energy gathered from the hot rocks and water at the centre of the earth.

  -Hydroelectric Energy: Hydroelectricity is the term referring to electricity generated by hydropower; the production of electrical power through the use of the gravitational force of falling or flowing water.

  -Biomass Energy Biomass, as a renewable energy source, is biological material from living, or recently living organisms. As an energy source, biomass can either be used directly, or converted into other energy products such as biofuel.

Environment problems and solutions

A natural disaster is a major adverse event resulting from natural processes of, or effecting, the Earth; examples include floods, severe weather, volcanic eruptions, earthquakes, and other geologic processes. A natural disaster can cause loss of life or property damage. There's no way to stop them, as they're natural, we can't change it.

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 There are some sort of disasters already known.

 -Wildlife: By the year 2030, 25% of all animals may be extinct, and it can be caused by three principal reasons. One is pollution, because they home was polluted. The second is hunting, man hunts and kills millions of animals every year and third reason is the environment itself.

  -Pollution: Cars and factories are very dirty. They're very dangerous for people. Two serious problems about pollution are:
--Acid Rain: When gases and chemicals mix with water in the air.
--The Greenhouse Effect: Gases and chemicals are the reason for this. Some of them stay in the air like a blanket and because of this Earth's climate is changing and getting hotter.

  -Health: People don't just pollute the atmosphere. They pollute themselves too, for example: --Cigarettes --Alcohol --Illegal drugs

  -Energy: 94% of the world's energy comes from oil, gas and coal. But these 'fossil fuels' won't last forever. There's enough oil and gas for the next 50 years. Coal will last longer, then we have another options.
--Nuclear Power: It was a great idea until the Chernobyl catastrophe happened.
--Natural Energy: This means energy from the sun, sea, wind and under the ground. It's clean and natural. But it's very expensive.

  -Land: 40% of world's rainforests have dissapeared in the last 80 years. This happens because people need wood and paper, minerals and medicines and more room for farms and houses.

The Biosphere

What it is? The biosphere is the region of the Earth's crust and atmosphere where life exists. It includes our physical envirnment and a biological community of interacting organisms. We are among these organisms that cannot survie without the environment.