What is the main source of natural light on earth?

Answer 1

Couldn't be the sun -- a two year old would know that. I vote for garden gnomes.

Answer 2

Well if you are just saying 'light' instead of 'visible light' then you have to include the entire spectrum of light. This includes microwaves, infrared, ultraviolet and radio waves - but the sun produces these too.

Answer 3

Jonathan M gives you the best clue. we ask, why does the sun emit light and heat? jonathan says that the source of light on our planet is a result of a nuclear reaction.

this is precisely what all stars do: they emit light and heat as a result of perpetual, constant thermonuclear reactions, i.e., explosions.

the sun is the main source of natural light on the earth and on all other planets in our solar system, even if very faint. the sun is the main source of light for any planets revolving around any star anywhere, as far as we know, because of the great energy emitted from these perpetual thermonuclear explosions.

i am wondering if your question may refer to the greenhouse effect (global warming), since no scientist believes that light on the planet comes from anything other than the sun. are you trying to ask what happens with light/heat with greenhouse gases in the atmosphere?

carbon dioxide, not only expelled as waste by oxygen-breathing animals but expelled into the atmosphere by burning petroleum gas in combusion engines, such as cars as well as given off by the natural breakdown of the leaves that fall from the trees in the autumn goes into the air surrounding our planet. btw: most of the air that we breathe is really nitrogen as well as a small amount of oxygen, which we MUST have bound to our red blood cells in order that all cellular structures of our bodies and even bodies of air bacteria (not anaerobic bacteria, which is killed by air) are nourished and energized by oxygen. we breathe in nitrogen, oxygen, and trace amounts of other gasses, and we breathe out carbon dioxide (CO2).

for as long as plants have rotted as part of their life cycle, there has been release of CO2 into the air. but when 6.5 billion people on this planet utilize so many internal combustion engines [as well as, perhaps, other items whose byproduct is carbon dioxide], far too much CO2 rises up into the stratosphere. it then has the effect of a sort of mirror in that it reflects heat back at the earth instead of this heat dissipating. the heat (light, if you want to call it that) then heats the ground, which is dark in color. dark attracts sunlight/heat more than the color white. so then, the earth itself gets hotter, and then ice shelves (especially in greenland) and iceburgs begin to melt.

the currents of the ocean are also responsible for disbursement of heat to parts of the planet. the ocean waters have a certain amount of salt content. when the ice melts, of course, more and more fresh water combines with salt water and then currents change.

england and europe may very well experience a mini-iceage within 100-200 years due to global warming from CO2 and the heat that then gets reflected back into the earth.

i thought that if you did not know that the major source of light on the earth is the sunshine, that you might be talking about light reflection, which would be reflection of radiation (light/heat) back to the earth. you see why i thought that of your question?

Answer 4

The sun?

Answer 5

Hi. The scattering of sunlight from the atmosphere.

Answer 6

most of our light comes from the sun but some comes from refection of anartic andantartic ice

Answer 7

On the next sunny day, around noon, look straight up. There's your answer.

Answer 8

nuclear reaction taking place a long ways away

Answer 9

The whole world know it is from the gas that erupts from your butt!!!

Answer 10

THE FLASH LIGHT!!!
FIRE FLIES
OR
THE HEADLIGHTS OF AN ALIEN SPACECRAFT