Mercury does not have what we would call an atmosphere. It is very, very thin , a collection of a few atoms per cubic meter, some being ionized from the surface. It is less than a trillionth of Earth's.
NO, they dont have atmosphere. Because of their proximity to the sun.
Venus has a thick atmosphere. Mercury does not have an atmosphere.
Venus is hotter than Mercury because Venus has a atmosphere and Mercury doesn't so Mercury can't keep so much heat in as Venus can.
Except earth and Venus, no other planet has atmosphere. Earth's atmosphere absorbs UV rays due to presence of Ozone but Venus does not have Ozone and it's atmosphere is made up of greenhouse gases.
Venus is hotter than Mercury because Venus traps heat and cannot escape from the Sun in the atmosphere.
There is no free oxygen in the atmosphere of Venus, but a vast amount exists bound as carbon dioxide in the dense atmosphere of the planet. There is likely substantial oxygen that exists as mineral oxides on and under the surface.
Venus has a thick atmosphere. Mercury does not have an atmosphere.
Venus is hotter than Mercury because Venus has a atmosphere and Mercury doesn't so Mercury can't keep so much heat in as Venus can.
Except earth and Venus, no other planet has atmosphere. Earth's atmosphere absorbs UV rays due to presence of Ozone but Venus does not have Ozone and it's atmosphere is made up of greenhouse gases.
Thick atmosphere on Venus none on Mercury
Venus is hotter than Mercury because Venus traps heat and cannot escape from the Sun in the atmosphere.
Mercury has no moons and no atmosphere. Venus has an atmosphere but no moons. Mercury probably has no moons and no atmosphere because it is very close to the sun.
Venus has the thickest atmosphere is our solar system
Mercury is much closer to the sun than Venus. It has less of an atmosphere, much higher temperatures, and a very short year. Venus has an very sulfur-rich atmosphere, cooler temperatures than Mercury, and a longer year than Mercury.
Even though Mercury is closer to the sun than Venus, Venus is hotter because it has a dense atmosphere that traps the suns heat while Mercury does not.
all planets have atmospheres. However, Mercury has extremely low atmospheric pressure, Mars has an atmosphere way below the Armstrong Limit, and Venus and the Outer worlds have way too high of an atmosphere.
Mercury and Venus do not have any natural satellites (Moons).
mercury has helium hydrogen and potassium