Atmosphere - Study Mode

[#61] Pampero is ________
Correct Answer

(A) A cold wind which prevails in Argentina and Uruguay

Explanation

Solution: Pampero is the name for a severe line squall that occurs over the Pampas of Argentina and Uruguay. A pampero event marks the passage of a cold front and often brings a considerable drop in temperature. The Pampero is usually accompanied by very humid and close conditions, severe rain, hail and thunderstorms and is followed by a cold, dry, gusty, southerly or south-westerly wind.

[#62] An upper air wind system with very high velocities in certain parts of the atmosphere is called ________
Correct Answer

(C) Jet stream

Explanation

Solution: streams travel in the tropopause. Jet streams are some of the strongest winds in the atmosphere. Their speeds usually range from 129 to 225 kilometers per hour (80 to 140 miles per hour), but they can reach more than 443 kilometers per hour (275 miles per hour).

[#63] In the earth's atmosphere, the atmospheric pressure ________
Correct Answer

(B) Decreases with height

Explanation

Solution: In the earth's atmosphere, the atmospheric pressure decreases with increasing altitude. The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels.

[#64] When a descending air contracts and its volume decreases, what happens to its temperature?
Correct Answer

(B) Its temperature increases

Explanation

Solution: When a descending air contracts and thus its volume decreases but its temperature increases.

[#65] Which of the following is the annual precipitation of an area?
Correct Answer

(A) All forms of precipitation converted to the quantity of liquid water

Explanation

Solution: All forms of precipitation converted to the quantity of liquid water is the annual precipitation of an area. Precipitation is any form of water that falls from the sky. Evidently, any precipitation develops in Earth’s atmosphere and then falls to the surface, usually as rain.