Which of the following best describes Earth's axis?
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be
A. an imaginary line through Earth's center from
pole to pole
B. the average distance between Earth and the sun
C. the extra fourth of a day we have each year
D. The amount of time it takes Earth to revolve
around the sun
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If a balloon is taken outside on a very cold day, what will occur?

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.

In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents