Your neighbor reads a newspaper article about fossils of tropical plants being found in a very cold, southern area of the world. “how can that be? ” he asks you. you tell him that
a. it must be an april fool’s article.
b. the fossil must have been moved to that area after forming.
c. the continents may once have been in very different places than they are now.
d. the plants probably fell in the ocean and were carried to a cold area.

The correct answer is - c. the continents may once have been in very different places than they are now.

The continents were in fact on different places than they are now, and that shouldn't weird us out since we know that they are moving constantly. In the past, there was a time when there was no land mass on the poles, but instead, all continents were around the equator and at the mid-latitudes, and since there was no ice caps, the Earth was much warmer, as well as the sea level being much higher than what it is now. This created perfect conditions for tropical flora and fauna to spread out in most areas.

As the continents continued to move, and some went further north and south, this flora and fauna disappeared from the regions that we can not imagine nowadays that could support tropical flora or fauna on them.

the force represented by vector a is normal force. if the hockey puck is moving to the right, when it is hit with a significant force by the hockey stick the puck will move off in a different direction. correct on edge.