earth science questions..?

Question

im kinda stuck on a few problems on my hw and if neone can help me out in ne way thatd b so great.. plz..

1- describe the importance of water vapor in the atmosphere

2- why does the temperature increase with height through the stratosphere

3- rank the main atmospheric gases in the troposphere in order from most abundant to least abundant.. dont include trace gases.

any help on any of this is greatly appreciated. thank u so much..

Answer 1

1. Most of it is contained in the troposphere. Besides accounting for most of Earth's natural greenhouse effect, which warms the planet, gaseous water also condenses to form clouds, which may act to warm or cool, depending on the circumstances. In general terms, atmospheric water strongly influences, and is strongly influenced by weather, and weather is modified by climate.

Fog and clouds form through condensation around cloud condensation nuclei. In the absence of nuclei, condensation will only occur at much lower temperatures. Under persistent condensation or deposition, cloud droplets or snowflakes form, which precipitate when they reach a critical mass.

2. The stratosphere is layered in temperature because it is heated from above by absorption of ultraviolet radiation from the Sun.

3. It contains roughly 78% nitrogen, 21% oxygen, 0.93% argon, 0.04% carbon dioxide, and trace amounts of other gases, in addition to water vapor. This mixture of gases is commonly known as air.

Hope this helps.