Someone standing at the edge of a cliff throws one ball straight up and another ball straight down at the same initial speed
Neglecting air resistance, the ball to hit the ground below the cliff with the greatest speed will be the one initially thrown A) upward.
B) downward.
C) They will both hit with the same speed.
C
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Why are the winds in a hurricane so strong?
A. The Coriolis force causes hurricanes to spin quickly. B. There is little friction to slow the wind. C. The pressure in the centre of the hurricane is very low. D. The pressure gradient is weak.
How do seasons affect the surface winds?
A) During the northern summer, the surface winds shift to the south. B) During the northern winter, the surface winds shift to the south. C) During the northern winter, the surface winds shift to the north. D) All of these choices
According to Figure 20.23 in your textbook, scientists trace dust origins by analyzing
A) mineral particles. B) pollen grains. C) microbe DNA. D) element concentrations.
Hurricanes tend to strengthen over warm ocean water
Indicate whether the statement is true or false