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7/27/2019 Answer to Atmosphere Questions
http://slidepdf.com/reader/full/answer-to-atmosphere-questions 1/2
EARTH SCIENCE ASSIGNMENT 1. Describe the movement of the air molecules during transfer of heat by conduction and
convection. Answer: Movement of air molecules: The movement of air molecules from one place to another is due to differences in energy of the air in each area. More energetic air molecules are warmer, faster and less dense than less energetic air molecules. In response to changes in temperature, air molecules move faster and spread apart, or move slower and get closer together. Thus: For conduction: since the molecule of air has direct contact with other fast moving molecules (heated molecules), then the air molecules will move faster and less dense. For convection: since the air molecule has no direct contact with the source of heat, then the air molecules will move slower then conduction and more denser. But it will be faster than when it is in normal temperature.
2. The density of air decreases as you climb a mountain. What happens to the air pressure as you climb higher? Why? Answer: The Air Pressure as you climb higher will also decrease the same as the density. This is because, in terms of a gas, density and pressure have a proportional relationship. The higher the pressure of the gas, the higher the density. The lower the pressure of the gas, the lower the density.
3. Starting at the surface of the earth, list each layer of the atmosphere by increasing altitude. Refer to the attached page.
7/27/2019 Answer to Atmosphere Questions
http://slidepdf.com/reader/full/answer-to-atmosphere-questions 2/2
4. How are ionosphere and magnetosphere the same? How do they differ? THEY ARE THE SAME BECAUSE:
A. they are the composition of the magnetospheric system: Which means magnetosphere and ionosphere are parts of the magnetic field of
Earth. The outer layer is called magnetosphere while the inner layer is called ionosphere. The contact point or 'interface' between the magnetospheric system (some 10,000 km) and the atmosphere reaches deeply into the atmosphere and ends at about the location of the ionosphere (some 100 km) above the ground. B. They also affect the propagation of radio waves:
The magnetosphere and ionosphere is the regions of Earth’s atmosphere in which the number of electrically charged particles—ions and electrons—are large enough
to
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propagation
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The
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by the action of extraterrestrial radiation (mainly from the Sun) on neutral atoms and molecules of air. C. Energy and current flow from the outer atmosphere to the inner atmosphere
through them: Energy and currents flow from the magnetosphere into the ionosphere, and
back out into the magnetosphere, like an invisible electrical current. Along the way, some of these currents can cause the Northern and Southern Lights (Aurora Borealis and Aurora Australis) in the polar regions of Earth.
THEY DIFFER BECAUSE: A. Their distance from the earth.
Ionosphere is at the Thermosphere, just above the Kármán line or above 100 km or the earth’s surface, while magnetosphere extends beyond the atmosphere (10,000 km and more) and beyond which forms the Van Allen radiation belt to deflect Solar Wind. B. Their function.
The magnetosphere deflects Solar Wind, while the Ionosphere deflects Ultraviolet Radiation from the sun.