Often, waterfalls form as streams flow from soft rock to hard rock. This happens both laterally (as a stream flows across the earth) and vertically (as the stream drops in a waterfall). In both cases, the soft rock erodes, leaving a hard ledge over which the stream falls
Answer:
Because rocks in eastern North America are generally "older and colder" than those in the West: all else being equal, an M 7 earthquake that strikes on the east coast of the US would produce shaking that would be felt (C) over a greater area than a similar quake that occurred in the western US.
Explanation:
because the rocks are older they may not have the strength to withstand the vibration of the quake so it can be felt over a greater area.
An earthquake is simply the shaking of the earth surface that is being resulted from a sudden release of energy, in the lithosphere of the Earth and it then creates a seismic waves.
Earthquakes are generally caused when the rock underground suddenly breaks along a crack.
<span>A.Airports in the early 1920s catered to municipal and regional travel, while airports in the 1930s served as hubs for travel between countries.</span>
<u>Answer:</u>
<em>Since the oil is lighter than water, it glides over any water in the oil store.</em>
<u>Explanation:</u>
<em>Oil gases, including flammable gas, are the least thick material in the arrangement and are situated over the oil. </em>
Boring and setting a pipe to the oil save permits recuperation. Oil isn't appropriated uniformly around the globe.
<em>Marginally not exactly 50% of the world's demonstrated stores are situated in the Middle East (counting Iran yet not North Africa).</em>
Answer:
That would be a Hurricane
Explanation: