Answer:
Because at those latitudes the jet stream, which is a very high altitude wind, always blows from the West to the East. The planes moving at a constant air speed thus go faster in the West-East direction when they are moving with the wind than in the opposite direction.
Explanation:
the picture that shows a plain is 4
Answer:
gravity
Explanation:
streams erode dirt and rocks, transport the sediment, and redeposit it in new locations shaping the earths surface into a system of stream valleys. streams now flow downhill due to the force of gravity