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Science-Related Homework Help Geography and Earth Sciences Topic started by: sunjx on Mar 6, 2018



Title: Explain the differences in air motion within a low pressure system and a high pressure ...
Post by: sunjx on Mar 6, 2018
Explain the differences in air motion within a low pressure system and a high pressure system.

Question 2

In the Northern Hemisphere, winds for a cold front travel south or ____ before passing, shift directions while passing, and then travel ____ after passing.
 A) southeast; west or northwest
  B) southwest; south or southeast
  C) southwest; west or northwest
  D) southeast; south or southwest

Question 3

Instructions: Choose one answer from each pair or group of selections. Sinking air is best established and the driest conditions are found on the EASTERN  WESTERN side of a subtropical high pressure center.

Question 4

What is the difference between weather and climate?

Question 5

Lake-effect snows are best developed around the Great Lakes during ____.
 A) early spring when moist, tropical air moves over the frozen lakes
  B) late fall and early winter when cold, dry polar air moves over the relatively warm water
  C) late fall and early winter when moist, polar air sweeps in from the east
  D) middle winter when the unseasonably warm air mass moves over the cold water

Question 6

Instructions: Choose one answer from each pair or group of selections. Precipitation is ABUNDANT  SCARCE in polar regions.


Title: Explain the differences in air motion within a low pressure system and a high pressure ...
Post by: rene_ram97 on Mar 6, 2018
Answer to #1

Horizontal pressure differences create a force that starts the air moving from higher pressure toward lower pressure. Because of the earth's rotation, the winds are deflected from their path toward the right in the Northern Hemisphere. This deflection causes the winds to blow clockwise and outward from the center of the highs, and counterclockwise and inward toward the center of the lows. As the surface air spins into the low, it flows together and is forced upward, like toothpaste squeezed out of an upward-pointing tube. The rising air cools, and the water vapor in the air condenses into clouds. In regions of high pressure, skies are generally clear. As the surface air flows outward away from the center of a high, air sinking from above must replace the laterally spreading surface air. Since sinking air does not usually produce clouds, we find generally clear skies and fair weather associated with the regions of high atmospheric pressure.

Answer to #2

C

Answer to #3

EASTERN

Answer to #4

Weather is the condition of the atmosphere at any particular time and place. Weather is always changing and is comprised of the elements of air temperature, air pressure, humidity, clouds, precipitation, visibility, and wind. The climate of a particular region would be its average weather. Climate represents the accumulation of daily and seasonal weather events over a long period of time.

Answer to #5

B

Answer to #6

SCARCE


Title: Explain the differences in air motion within a low pressure system and a high pressure ...
Post by: sunjx on Mar 6, 2018
Genius!!!!!!