I Know the dates of the solstices and equinoxes and the location of the subsolar

Question

I Know the dates of the solstices and equinoxes and the location of the subsolar point at each. Also, how to these correspond to seasons and daylengths in the northern and southern hemispheres? 2·What is average atmospheric pressure at sea level? Does air pressure increase or decrease with altitude? 3·Know the ways the atmosphere is classified and the characteristics of each layer. You might be asked to label these. · · · o Classified by Composition: Heterosphere, Homosphere o Classified by Temperature: Thermosphere, Mesosphere, Stratosphere, Troposphere o Classified by Function: lonosphere, Ozonosphere What are the most abundant gases? What is the Normal Lapse Rate? * . 4.What does Anthropogenic mean? · 5·What is an inversion layer?

Explanation / Answer

1. Equinoxes:

Spring Equinox- March 20

Autumn/ Fall Equinox- September 22

Solstices:

Summer Solstice- June 21

Winter Solstice- December 21

2. The average atmospheric pressure at sea level is 101.325 KiloPascals 0r 1013.25 millibars. Atmospheric pressure decreases with increasing altitude.

3. Most abundant gases in the atmospere are Nitrogen (78.08%), Oxygen(20.94%), Argon (0.93%), Carbon Dioxide (0.03%).

The decrease in temperature with increasing latitude in the atmosphere is called Normal Lapse Rate. It is 6.5 degree Celcius per Kilometre.

4. Anthropogenic can be related to human activity and the causes and effects.

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