Mars gets LESS sunlight than Earth does, because of its greater distance from the Sun.
not much
All things being equal, sunlight on Mars at aphelion would be about 36% as strong as sunlight on Earth. But Mars has a thinner atmosphere, so this will brighten it a little. Because your eyes adapt to the available light, the difference would be less noticable. Without a brighter comparison (sunny day vs. cloudy day here), the light would not seem intrinsically less. Since the Sun shows a smaller disk on Mars, shadows are sharper.
Mars is roughly 1.5 times as far away from the Sun as the Earth is. The amount of light reaching an object declines as the square of its distance from the sun. 1.5 X 1.5 = 2.25. Thus Mars gets 2.25 times less light than the Earth does, or about 44% as much as the Earth.
Mars is much less massive that the Earth; its mass is about a tenth that of Earth, or abut 8.6 times as much as our Moon. Mars also has a lower average density than the Earth, partly because it it has more rock and less metal in comparison to the Earth, and partially because its weaker gravity has resulted in less compression of its interior. See http://en.wikipedia.org/wiki/Mars
Earth is about 1.88 times larger than Mars.Earth has a diameter of 12,756 km whereas Mars has a diameter of 6,788 km (0.533 Earths)
not much
All things being equal, sunlight on Mars at aphelion would be about 36% as strong as sunlight on Earth. But Mars has a thinner atmosphere, so this will brighten it a little. Because your eyes adapt to the available light, the difference would be less noticable. Without a brighter comparison (sunny day vs. cloudy day here), the light would not seem intrinsically less. Since the Sun shows a smaller disk on Mars, shadows are sharper.
Venus and Mercury rotate slowly, much more slowly than Earth or Mars.
Lots
Mars is much smaller than Earth.
Too much heat depletes the ozone layer making earth more warmer.
Yes, the sunlight received by mars will be less than that received by the Earth, since Mars is further away from our sun. the sun will appear to be much smaller and less energy is received per unit of area. The light level will be dimmer, but you would still be able to see quite well.
There is less gravity on mars, it has only 37.6% of earths gravity. If you weigh 100lbs on Earth, you would weigh 37.7lbs on Mars. Mars is smaller than Earth so the effect that gravity has on anything there is lower than it is on Earth
Mars is roughly 1.5 times as far away from the Sun as the Earth is. The amount of light reaching an object declines as the square of its distance from the sun. 1.5 X 1.5 = 2.25. Thus Mars gets 2.25 times less light than the Earth does, or about 44% as much as the Earth.
Mars only has about 28% the surface area of the Earth. What's interesting is that number matches the land area of Earth, so the total surface of Mars is roughly the same as the dry land surface of Earth.
All life is on Earth, none on Mars.
The gravity of Earth is 2.6 times that of Mars.