Is earth the most gaseous planet?

Answer 1

All measures in grams per cubic centimeter (g/cm3):

• Mercury - 5.427
• Venus - 5.204
• Earth - 5.515
• Mars - 3.934
• Jupiter - 1.326
• Saturn - 0.687
• Uranus - 1.27
• Neptune - 1.638
• Pluto - 2.03

Answer 2

* About 560 KM or 350 M. There is no clear dividing line and atmosphere molecules can be found outside the atmosphere. There are also different layers. * The atmosphere is a sort of bubble of air that surrounds the earth and gives us air to breathe, as well as deciding the temperature and weather we get. The atmosphere is held in place by the earth'sgravity pulling on it. Beyond the atmosphere is space. Here are the main layers of the atmosphere. (sometimes if people are more precise there will be sectoins within these, but these are all you need to know about unless you do physics at university level). * Troposphere (10-15 km above the earth's surface) - creates our weather, makes up 75% of the earth's atmosphere and it is wider at the equator than the poles. * Stratosphere (15-50 km above the earth's surface) - This is the level that most planes fly at here the temperature increases with altitude because of the sun's rays and ozone. * Mesosphere (50-80 km above the earth's surface) - This is where meteors slow down to make what we would call a shooting star. * Thermosphere (80+ km above the earth's surface) - The temperature here can get higher than 1000 degrees, however to us it will feel cold because of the molecules and our skin. This is where you find auroras, space shuttles and satalites. There are very few molocules here. SOURCES = http://www.vtaide.com/png/atmosphere.htm&usg=__iHL2MRKyNmkQU1sAkJ04aYyMU8=&h=600&w=800&sz=30&hl=en&start=2&um=1&tbnid=tB6CHcnNaQGXzM:&tbnh=107&tbnw=143&prev=/images%3Fq%3Dthe%2Batmosphere%26hl%3Den%26rls%3Dcom.microsoft:en-gb:IE-SearchBox%26rlz%3D1I7GEUA_en%26sa%3DX%26um%3D1and yahoo! answers

Answer 3

The thickness of the Earth's atmosphere depends on a lot of factors, including what you consider to be the atmosphere.

The atmosphere does not end abruptly, like the surface of the ocean, but fades off gradually.

Humans can breath without great difficulty until an altitude of about 7000 meters. Some people have even climbed Mt.Everest (8000m) without breathing apparatus. Above 10,000 meters though, few would survive.

Airplanes fly regularly at 11000 meters and they need atmosphere to fly. Even satellites at 150 kilometers above the surface of the planet encounter some atmospheric molecules and are eventually slowed down by drag (but it takes months).

The main layers of the atmosphere are:

• Troposphere (10-15 km above the earth's surface) - creates our weather, makes up 75% of the earth's atmosphere and it is wider at the equator than the poles.
• Stratosphere (15-50 km above the earth's surface) - This is the level where most commercial planes fly. Here the temperature increases with altitude because of solar radiation and ozone.
• Mesosphere (50-80 km above the earth's surface) - This is where meteors slow down to make what we would call a shooting star.
• Thermosphere (80+ km above the earth's surface) - The temperature here can get higher than 1000 degrees, however to us it will feel cold because there are so few molecules of air. This is where you find auroras, space shuttles and satalites. There are very few molecules here.

It is 250km thick!!!
The total thickness of Earth's atmosphere is 400 km or 248.514 miles thick.

Measuring the thickness is impossible because it gets thinner and thinner at increased height, until it can't be detected.

But if all the atmosphere were concentrated so that it didn't get thinner, so the pressure was uniform all the way through and the same as at sea-level, its thickness would be 8 kilometres.

Answer 4

We know that the so-called gas giants, those planets outside Mars orbit, are mostly gas. (Remember that Pluto got demoted; it's no longer a planet.) Jupiter, Saturn, Uranus and Neptune complete the roster of the gas giants.

Answer 5

Not even close. In fact, of the eight planets of our solar system, Earth is 3rd from the bottom of the list. Only Mercury and Mars have less of a gaseous atmosphere than the Earth does.

Scientists have discovered several hundred "extra-solar" planets, which orbit other stars. We have no information at all about the possible atmospheres of any of those worlds.

Answer 6

The total density or pressure of our atmosphere appears to be ideal. The density is very important for it acts as an insulating blanket protecting the earth from the coldness of space. If the earth had a greater diameter, holding a more dense atmosphere, the thermal blanketing effect would be enhanced, producing a much warmer climate. If the earth were of smaller diameter, holding a less dense atmosphere, there would be a colder climate. As suggested earlier, the earth has the correct surface temperature, showing that the atmosphere has the proper density and that the earth has the proper size!

Answer 7

Within our own solar system, Jupiter. In fact, Jupiter contains more total mass than all the other planets, comets and asteroids combined. It would not be much of an exaggeration to say that our solar system includes the Sun, Jupiter, and some small pieces.

Answer 8

Earth has the highest density, which is equal to 5.5153 g/cm3

Answer 9

It's not. The earth's average density is 3.72 times the sun's average density.

Answer 10

Earth is the densest planet. Saturn is the least dense.