LAYERS OF ATMOSPHERE: Question #1-4

Question #1: What phenomena seem to distinguish one layer of the atmosphere from another?

Answer: The phenomenon that seems to distinguish one layer of the atmosphere from another is temperature. In between the layers the temperature stays constant.

       A temperature gradient is a physical quantity that describes in which direction and at what rate the temperature changes the most rapidly around a particular location. The temperature gradient is a dimensional quantity expressed in units of degrees (on a particular temperature scale) per unit length.

Question 2: . Where in the atmosphere is the temperature the lowest?

The troposphere is the lowest layer of the atmosphere. The air is very well mixed and the temperature decreases with altitude. Air in the troposphere is heated from the ground up. The surface of the Earth absorbs energy and heats up faster than the air does.

Answer: The temperature is the lowest in the Mesosphere. The temperature is the highest in the troposphere.

Question 3: Where in the atmosphere is the pressure the highest?

    Atmospheric Pressure. The Earth's atmosphere is divided into four layers that begin at sea level and extend to a height of about 400 km (260 miles). The lowest layer, the troposphere, starts at sea level and reaches a height of 10 km (7 miles).

Answer:The pressure is the highest in the Troposphere.

Question #4: Why do you think temperature decreases through the troposphere and increases through the stratosphere?


Answer: The temperature decreases through the troposphere and increases through the stratosphere because the ozone layer absorbs the sun's ultraviolet rays.

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