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Okay first of all mars does not have life 2ndly mars is the 4th planet earth is the 3rd planet mars is mostly red and earth is mostly blue there is some but there are alot more
The difference between them is that Earth is larger and Mars does not have qualities for life to sprout.
71% of Earth's surface is water. Mars has no liquid water, but the Phoenix Mars Lander scooped up soil and ice.
Mars gravity is 2.7 times less than that of Earth. Mars has 2 moons and it's atmosphere is 95% CO2 with a tiny bit of nitrogen, argon, oxygen, and carbon monoxide.
Earth has 1 moon and has a lot of nitrogen and some oxygen and others (tiny bits of argon and carbon dioxide).
(Also, our deserts are hot in the daytime and cold at night. Mars's deserts are freezing and airless.)
The biggest difference is that Earth has advanced life forms, Mars does not.
Mars is smaller than earth with less gravity. It also has a very thin CO2 atmosphere where Earth has a Nitrogen Oxygen atmosphere that is much thicker. Mars is also very cold while Earth is warm.
* Earth is almost twice the diameter of Mars.
- Nearly 70% of Earth's surface is liquid water, while Mars has none.
- The sun warms the Earth to more the 100oF; on Mars the temperature barely goes above the freezing mark.
- Earth has an atmosphere breathable by humans. Mars has virtually none, and it is composed almost entirely of toxic gases.
IIRC, Mars is about 1 1/2 time farther from the sun than Earth; and is about 1/2 the size, and 3/4 the density.
It's surface is largely iron oxide, which gives it its reddish color. There is no liquid water (there is ice at the poles). Because is it has a much thinner atmosphere, and is farther from the sun, it is much colder.
Astronmers speculate that Mars was once much closer to the sun and was more "earthlike," but gradually moved farther away, resulting in its present state.
What else can I help you with?
What solar system bodies have atmospheres containing carbon dioxide?
Venus, Earth, Mars, and Triton (Neptune's largest moon) have carbon dioxide in their atmospheres.
Why is planet earth the only planet with air?
It depends on how you define air. Other planets in the solar system have atmospheres, but they have different compositions from Earth's atmosphere, which may or may not be called air. The gas planets have atmospheres made mostly of hydrogen and helium while Venus and Mars have atmospheres made mostly of carbon dioxide. The air we are familiar with is mostly nitrogen and oxygen. When Earth was young it likely had a carbon dioxide atmosphere as well, but through photosynthesis algae took carbon dioxide out of the atmosphere are replaced it with oxygen. More carbon dioxide was removed in bodies of water and deposited as carbonate rocks. The nitrogen, already present in the atmosphere, remained.
Is mercury earth's sister or brother planet?
Mercury is earths brother planet because Venus is earths sister planet.
What is known as the earths sister planet?
Venus is known as Earth's sister planet.
Which planet is equal in size to about 63 earths?
Jupiter or Saturn. i think its Jupiter though...like thousands and thousands of earths can fit into the sun....venus is close to the size of esarth also
Do Mercury and Venus have thick atmospheres?
Venus has a thick atmosphere. Mercury does not have an atmosphere.
Compare the atmospheres of the four inner planets?
Mercury has a thin atmosphere mostly made of oxygen, sodium, hydrogen, helium, and potassium. Venus has a thick atmosphere of carbon dioxide with clouds of sulfuric acid. Earth's atmosphere is primarily nitrogen and oxygen with traces of other gases. Mars has a thin atmosphere mainly comprised of carbon dioxide.
What planet's atmosphere is most carbon dioxide?
There are two such planets, Mars and Venus. Venus has a much thicker atmosphere than Mars, but both atmospheres are about 95% carbon dioxide.
What planets have nitrogen atmospheres?
Planets with nitrogen atmospheres include Earth and Venus. Nitrogen makes up about 78% of Earth's atmosphere and about 3.5% of Venus's atmosphere.
Do the terrestrial planets have atmosphere?
Yes. all the terrestrial planets have atmospheres. however, in the same area that there are 10 Billion Billion Atoms in earth's atmosphere, (about 1 cubic in) there are about 10 million atoms in mercury's. maercury has almost no atmosphere, and we don't even know what it is, but both mars and Venus's atmospheres are 95 % CO2, but venus's atmosphere is thick, even thicker than earth's, but mars's is thinner than earths. all the terrestrial planets have some kind of atmosphere.
Which terrestrial planet has the thickest atmosphere?
venus has the densest atmosphere
What are Venus' clouds made of that makes the suns light reflect?
The atmosphere is mainly composed of Carbon Dioxide and Nitrogen but Venus' atmosphere is equivalent to that of 93 Earth Atmospheres.
How are the atmospheres of Venus and Mars similar?
They are not the same at all, Venuses atmosphere is very hot dry and thick, while Mars atmosphere is thin and cold. Though they have totally different atmospheres, both planets are going through the same processes, which makes them very similar.
Which 2 inner planets have thick atmospheres?
Venus and Earth are the two inner planets with thick atmospheres. Venus has a thick atmosphere composed mainly of carbon dioxide, while Earth has a diverse atmosphere containing nitrogen, oxygen, and other trace gases.
Do all inner planets have thick atmospheres?
No. Only Venus has a really thick atmosphere. Mars has only a thin atmosphere and Mercury has almost no atmosphere.
Which rocky planets have well developed atmospheres?
Earth, Venus, and Mars have well-developed atmospheres compared to the other rocky planets in our solar system. Earth has a thick atmosphere that supports life, Venus has a thick and toxic atmosphere, while Mars has a thin atmosphere primarily composed of carbon dioxide.
What planet has opaque atmospheres to keep it hot?
Venus has a very thick atmosphere of Carbon dioxide. Its average surface pressure is a crushing 93 bar, or 93 times that of Earths. The thick atmosphere keeps the suns heat in, making it the hottest planet in our solar system.
