Earth's atmosphere is 25 miles thick form ground level to the edge of space. If you imagine earth as the size of an apple, the atmosphere is a much thinner layer than the skin of the apple.
venus has thick posnis atmosphere
The thickness of each planet can be measured by looking at the surface pressure - this is essentially related to the number of gas molecules for a given volume. A low pressure indicates a thin atmosphere, while a thicker atmosphere will have a higher surface pressure. You cant really give this for the four outer gas planets as they are made out of gas and have no real surface like the inner terrestrial planets. The atmospheres (and pressures) of the gas giants just get thicker the deeper you go into the planet. For Mercury, the surface pressure is near zero, there is no real atmosphere due to its small size and closeness to the sun. For Venus the atmosphere is thick, the pressure is some 93 bar (9.3 Mega-pascals - MPa or 9300 kilo-pascals - kPa) at the surface, where for earth it is about 1 bar (0.1 MPa or 100 kPa), so Venus' carbon dioxide atmosphere is 93 times that of earths. Mars has a thin carbon dioxide atmosphere of 0.064 bar or 6.4 kPa. 1 bar = 100 kPa = 0.1 MPa
The higher in the sky the sun is the more solar radiation received at the surface. This is because as the sun gets higher in the sky, there is less atmosphere blocking the sun's rays. Imagine the sun going through the atmosphere at a 90 degree angle. The thickness of the atmosphere let say is x thick. As the sun hit the surface at a lower angle, the thickness of the atmosphere has to go through more atmosphere to get to the surface. So the thicker atmosphere blocks more of the sun's rays.
ld the size of parachute required on a space probe to allow it to land safetly on venus which has a thick atmosphere
Venus
venus has thick posnis atmosphere
An atmosphere cannot be measured as a general thing. Atmospheres vary in thickness and coverage, because an atmosphere only covers the planet it is over. The smaller the planet, the smaller the atmosphere. The thickness varies greatly from planet to planet, too. Thus, it is impossible to measure atmospheres as one general, fixed-size object.
It is not a linear relation but, the larger the planet, the greater the gravity, the more it is able to attract and keep.
It is not a linear relation but, the larger the planet, the greater the gravity, the more it is able to attract and keep.
crust
There is no simple relationship, but the general tendency is that more massive planets have more gravitational attraction, and are able to maintain a denser atmosphere. The amount of atmosphere a planet has may also depend on it closeness to the Sun / to the planet's star, and to its evolutionary history.
There is no simple relationship, but the general tendency is that more massive planets have more gravitational attraction, and are able to maintain a denser atmosphere. The amount of atmosphere a planet has may also depend on it closeness to the Sun / to the planet's star, and to its evolutionary history.
The earth's atmosphere can be imagined as the same relative thickness as the varnish on a model globe.
100 100
1mm
no, they differ in heat and weather
2 ft thick