E. Long Answer Questions.
1. Describe the stratosphere.
2. What is air pressure? Which elements affect the air pressure?
3. What is cyclonic rainfall? Write the cause of its formation.
Answers
Answer:
The stratosphere is a layer of Earth’s atmosphere. The stratosphere is located above the troposphere and below the mesosphere.
Explanation:
Strat” means layer. This layer of our atmosphere has its own set of layers. There are no storms or turbulence here to mix up the air, so cold, heavy air is at the bottom and warm, light air is at the top. That’s the opposite of how the layers work in the troposphere, where we live. If you were to climb a mountain in the stratosphere you would have to take off your warm clothes as you got closer to the top rather than putting them on like we usually do. But there are no mountains high enough to reach the stratosphere, so you don’t have to worry about that.
This layer is 22 miles (35 kilometers) thick. The stratosphere is where you’ll find the very important ozone layer. The ozone layer helps protect us from ultraviolet radiation (UV) from the sun. In fact, the ozone layer absorbs most of the UV radiation the sun sends to us. Life as we know it wouldn’t be possible without this layer of protection.
Answer:
Explanation:
E 1] the stratosphere is a layer of Earth's atmosphere. It is the second layer of the atmosphere as you go upward. ... Ozone, an unusual type of oxygen molecule that is relatively abundant in the stratosphere, heats this layer as it absorbs energy from incoming ultraviolet radiation from the Sun.
2] Air pressure is the weight of air molecules pressing down on the Earth. The pressure of the air molecules changes as you move upward from sea level into the atmosphere. The highest pressure is at sea level where the density of the air molecules is the greatest. Factors Affecting Air Pressure:
- Temperature: As the temperature increases, air expands because of which its density decreases which results in low pressure. ...
- Height from Sea Level: ...
- Moisture in Air (Humidity): ...
- Gravitation of Earth: ...
- Rotation of Earth:
3] Frontal (or Cyclonic) Rain is caused by cyclonic activity and it occurs along the fronts of the cyclone. It is formed when two masses of air of different temperature, humidity and density meets. For example meeting of moisture laden warm tropical wind with a polar air mass. A layer separating them is called the front.
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