What is the importance of the sun as a source of energy?

Answer 1

The sun, first and foremost, is a star. It is basically a massive sphere of plasma and gasses which burn via fission and fusion. The constant burning of the gasses is what creates energy in the form of light and heat. The sun is about 5 billion years old, and contains enough mass to continue burning for another 5 billion years! It makes up 99% of our solar system, the other 1% are planets, moons, and comets or asteroids. The sun is vastly important in many ways. For one thing, the sun gives our planet the heat it needs to sustain life. Our planet is at just the right distance from the sun so that its neither too hot or too cold. Either of those extremes would mean no life on earth. The suns energy also allows the process of photosynthesis to occur, which in turn, allows for the abundance of plant species on this planet to thrive. Plants and trees, aside from being beautiful, food-providing objects, help our atmosphere by turning poisonous gasses like carbon dioxide into oxygen. The sun, because of how massive it is, helps to deter objects like comets and asteroids from slamming into the earth via its intense gravitational pull. These are a few of the things that makes our sun important. Sadly, the sun that made the earth ideal for life will also one day be the earth's and man's ultimate destruction. For it, like everything else, will die someday. And when it goes, we will too.

Answer 2

No, it is impossible to live without the sun. If there wasn't a sun, then humanity would've already been frozen to extinction, because the sun provides enough warmth to keep us alive. Temperatures would drop as cold as Mercury's during the night with the sun at all times on the earth if the sun wasn't there.

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That is half true, because MAN couldn't live without a star (at the right distance from the earth), but, on the bottom of the Atlantic Ocean, there is life, which makes no use of the sun at all. It contains bacteria, which live from gases from volcanoes, from inside the earth. Some prawn and stuff eat those, and there you have a food chain.

Source: "the blue planet", a BBC series.

I don't know if man could use this instead of the sun, but I don't think so. IT IS NOT POSSIBLE

Answer 3

-- too hot

-- too dry

-- too bright & never ever gets dark

-- no solid surface; nothing to walk or drive on

-- nothing can grow there, so nothing to eat

-- extreme sunburn risk, but protective clothing keeps burning off

-- shoes would melt

-- no known way to get there

Answer 4

The sun provides warmth and energy for us. Also, it is one of the main ingredients for plants to provide oxygen for us.

Answer 5

Light from the sun provides a constant source of energy. Plants collect that energy and convert it into chemical energy. Animals eat the plants and use the chemical energy for metabolism.

Answer 6

Without the sun, plants wouldn't grow and we would have no food to eat. Animals wouldn't also survive.

Answer 7

The planet would cool down, the oceans would freeze, and no life would survive. Soon the planet would be cold enough that even the atmosphere would freeze and sit like snow on the ground.

Answer 8

The importance of the sun's energy is the difference between Life and death on earth!!!

Answer 9

because plants need sun to live and plants take in carbon dioxide and gives out oxygen which humans need to survive

Answer 10

1) We need energy to get just about anything done. Specifically, living beings need energy to survive.2) The Sun is our main source of energy.