Well, Neptune doesn't have any land. Its completely gas, so you would fall right through it. No land. No copmposition. Unless your comparing Earth's atmosphere to Neptune's. However, Neptune does have a core.
neptunes size is 12% grater then the earth
It is about 17.135 times the mass of Earth.
Venus and Mars. The difference is that Venus atmospheric pressure is around 93 times that of Earths, while Mars' atmospheric pressure is only 0.7% of Earths.
No, Neptune's orbit is actually more eccentric (less circular) than Earth's orbit. Neptune's orbit is more elongated, with a greater difference between its closest and farthest points from the Sun compared to Earth's orbit.
The chemical reactions between Earth's atmosphere and the atmospheres of other planets would depend on the specific composition of each atmosphere. Interaction could lead to chemical changes, such as oxidation reactions or the formation of new compounds. However, without specific details on the atmospheres in question, it's difficult to predict the exact nature of the reactions.
The Troposphere
Earths is 9.78 and neptunes is 8.7
neptunes size is 12% grater then the earth
It is about 17.135 times the mass of Earth.
Stiffer mantle.
changes in buoyancy due to changes in density differences between the magma and surrounding rock.
Venus and Mars. The difference is that Venus atmospheric pressure is around 93 times that of Earths, while Mars' atmospheric pressure is only 0.7% of Earths.
Based on temperature differences.
Atmospheres have many different purposes, however the Earths atmosphere is vital to its existense as it prevents the suns harmful radiation from reaching the Earths surface. Moreover, from an enviromental standpoint the errosion by pollutants will eventually destroy the delicate atmosphere and the Earths protective barrier will be gone.
No, Neptune's orbit is actually more eccentric (less circular) than Earth's orbit. Neptune's orbit is more elongated, with a greater difference between its closest and farthest points from the Sun compared to Earth's orbit.
The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere
The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere