If the winds at the latitude of San Francisco and Washington, D.C., were from the east rather than from the west, why might San Francisco be able to grow cherry trees and Washington, D.C. palm trees?
A) The warm winds from Hawaii would stop blowing over San Francisco, giving it a cooler climate. The warm winds from Bermuda would warm up Washington, D.C.
B) Cherries need a dryer climate, such as the winds from Nevada, and palm trees need moister air, which would come from the Atlantic ocean.
C) The evaporation of water gives off heat, which would keep Washington, D.C. warm if the Atlantic winds blew eastward. This effect on the climate would be lost if the winds changed direction in San Francisco.
D) As the ocean off the west coast cools in the winter, the heat it loses warms the air that blows over San Francisco warming its climate. If the winds were from the east, this same effect would keep Washington, D.C. warm with its surrounding ocean, and San Francisco would only have the cool winds of Nevada determining its temperatures.
Question 2
Which covalent bond is more polar: a sulfur-bromine (S-Br) bond or a selenium-chlorine (Se-Cl) bond?
A) A selenium-chlorine bond should be more polar because of a greater difference in effective nuclear charge.
B) A selenium-chlorine bond should be more polar because of a smaller difference in effective nuclear charge.
C) A sulfur-bromine bond should be more polar because of a greater difference in effective nuclear charge.
D) A sulfur-bromine bond should be more polar because of a smaller difference in effective nuclear charge.
(b) Latitude and atmospheric circulation.
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