why is .......?

Question

why is the earth warm ? this might be on my science test s please help me.

Answer 1

The sun heats it

Answer 2

The earth is warm because of the insulating effect of the atmosphere otherwise the heat supplied to the earth would be immediately lost to space. The heat comes primarily from the sun but also from earth itself through atomic decay. This is best displayed by Yellowstone Park or by going down very deep mines.

Answer 3

For something to be warm it has to have heat. Heat is the transference of energy. Rubbing your hands together makes them warm right. The movement inside of the earth keeps it warm.

Answer 4

"warm" is a term used to define how you personally percieve an object to be in this case.

it is just a matter of prespective for the observer.

but earth is the temp that it is because of the internal heat that is trapped within and the blanketing effect of the atmosphere. after millions of years this is an increadiblly stable thing that cannot change in a few years because of man-made things.

Answer 5

The sun heats it. Greenhouse gases trap the heat.

Answer 6

it may be from the eath's core, but unlikly and the sun's heat
black also absorbs all the colors, like a sun ray, and that's why our pupils are black, so it could absorb light, and that's why your feet feel hot when you are standing on a blacktop or somewhere black

Answer 7

it rotates around the sun and the sun is very hot so it warms it. we get the suns rays.

Answer 8

the earth receives its warmth from the sun.