0
By volume, they are: oxygen (42%) and sodium (29%).
Wiki User
∙ 6y ago
Add your answer:
Earn +20 pts
Why does Pluto not have an atmosphere?
1. Mercury is close to the Sun. This gives any gas atoms, etc fairly high velocities, with only Mercury's fairly weak gravitational field to hold onto the gas. 2. Venus does have an atmosphere. It is much denser than Earth's atmosphere.
What 2 things move in the atmosphere to constantly change weather?
Air and Water
What is the atmosphere in mercury made of?
42% Molecular oxygen 29.0% sodium 22.0% hydrogen 6.0% helium 0.5% potassium Trace amounts of argon, nitrogen, carbon dioxide, water vapor, xenon, krypton, & neon
What 2 thiings does the water cycle transport?
The water cycle transport two things:1. water2. vaporsThese are regulated in atmosphere.
Why venus is the hottest planet than the other planet?
venus is hotter then the other planets because of 2 things. it is the 2nd closest planet from the sun, so it receives a lot of heat from the sun. Unlike Mercury (the closest planet to the sun), Venus has a very thick atmosphere that traps the heat of of the sun in a run away greenhouse effect.
What are 2 gasses in the atmosphere on mercury?
There are in fact 5 gasses you can choose from that are in Mercury's atmosphere. Oxygen, sodium, helium, potassium, and hydrogen.
Is there living in mercury similar to earth?
no because mercury is hotter Mercury is dry, extremely hot and almost airless. Planet Mercury is too small for its gravity to retain any significant atmosphere over long periods of time. The weak atmosphere contains hydrogen, helium, oxygen, sodium, calcium and potassium. Due to the heat of the planet, the very thin atmosphere is blasted off its surface by the solar wind and quickly escapes into space. Mercury's atmosphere is constantly being replenished. Mercury does not have enough atmosphere to slow down meteoroids and burn them up by friction. The sun's rays are approximately seven times as strong on Mercury as they are on the Earth. The sun also appears about 2 1/2 times as large in Mercury's sky as in the Earth's.
2 planets with no atmosphere can you make the answers easier?
Mercury is one; see link. While Mercury is too small to hold on to any significant atmosphere, there are small amounts of various gases that hang on loosely to the planet. Mercury may be the only one unless you are including Pluto, which is not a major planet. If Mercury is too small to maintain an atmosphere, then surely Pluto which is smaller cannot do it either.
Why does Pluto not have an atmosphere?
1. Mercury is close to the Sun. This gives any gas atoms, etc fairly high velocities, with only Mercury's fairly weak gravitational field to hold onto the gas. 2. Venus does have an atmosphere. It is much denser than Earth's atmosphere.
Which elements comprise the largest fraction in the composition of the atmosphere?
The top 2 are nitrogen and oxygen.
What 2 things move in the atmosphere to constantly change weather?
Air and Water
What is the atmosphere in mercury made of?
42% Molecular oxygen 29.0% sodium 22.0% hydrogen 6.0% helium 0.5% potassium Trace amounts of argon, nitrogen, carbon dioxide, water vapor, xenon, krypton, & neon
What causes the temperature range on Mercury in night and day?
1) Mercury takes about 58.6 Earth days to rotate, so the daytime lasts a long time and so does the night. 2) Mercury has no significant atmosphere to carry heat around the planet.
What three parts of the earth included in the biosphere?
1. atmosphere (air)- the layer of gases that surrounds the earth. 2. lithosphere (earth)-a. the solid portion of the earth b. the crust and upper mantle of the earth 3. hydrosphere (water)- the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere
What are the 2 top abundant elements in the earth's atmosphere?
Nitrogen makes up 72% of our atmosphere I believe. It's definitely the most abundant element. The second is Oxygen.
What and where are the ionosphere and exosphere?
The layer of the atmosphere that contains the ionosphere and exosphere is called the thermosphere. The exosphere is at the top and the ionosphere is at the bottom.
What are the top 2 things Alaska produces?
fish, oil
