Energy
Before the industrial revolution started at nineteen century in Europe, people only can use natural energy,
like hydraulic power ,solar power and wind power. After twenty century, people not only using natural energy
source but also using petrochemical energy. Though the gas may more stable to use than the water, but it also
caused lots of problems when human using them.
Because petrochemical energy are all non-renewable, so the people often fight each other to get the
resources. What's more, when people fire the petrochemical energy , it will create carbon dioxide. Though the
plant will absorb the CO2 to make photosynthesis, people on the world use lots of petrochemical energy and
the plants on the world can affordable. So the ecosystem became unusual. More and more scientists found the
trouble, so they are finding green , stable and cleaner resources. Just like flammable ice, If we can break through
the limitation of the technology, we doesn’t have to rely the oil , and even reduced the amount of the CO2.
The energy on the world are very rare. If we don’t have any energy that we can use, we only can life just like
the human of “the Stone Age”. So we have to practice thrift the energy so we can use it now and however.
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