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Green energy is the future of mankind. Hundreds of years from now we will have depleted our fossil fuel reserves on Earth and that could lead to a world war over the last bits of crude oil. Green energy is the answer to humans thirst for electricity / cars / technology.

I think the best way to maximize green energy is to launch a solar power plant into space and beam electricity down through infrared energy beams. The atmosphere of Earth filters much of the sun out of earth so a solar station in orbit around Earth would gather much more than ON Earth.

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Wiki User

14y ago

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We use energy to do work. Energy lights our cities. Energy powers our vehicles, trains, planes and rockets. Energy warms our homes, cooks our food, plays our music, gives us pictures on television. Energy powers machinery in factories and tractors on a farm.

Energy from the sun gives us light during the day. It dries our clothes when they're hanging outside on a clothes line. It helps plants grow. Energy stored in plants is eaten by animals, giving them energy. And predator animals eat their prey, which gives the predator animal energy.

Everything we do is connected to energy in one form or another.

Energy is defined as: "the ability to do work."

When we eat, our bodies transform the energy stored in the food into energy to do work. When we run or walk, we "burn" food energy in our bodies. When we think or read or write, we are also doing work. Many times it's really hard work!

Cars, planes, light bulbs, boats and machinery also transform energy into work.

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Wiki User

12y ago
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food that provides us with energy is known as energy - giving food. examples- carbohydrates and fat.

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Wiki User

12y ago
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To give you energy so you can get through the day without feeling tired.

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Wiki User

12y ago
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We need energy survive and live. Without energy we can't move and we wouldn't be able to do things with our muscle.

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Wiki User

9y ago
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Q: Why do we need energy?
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