When glaciers receded, leaving behind their cargo of crushed rock and sand (glacial drift), they left behind distinctive depositional landforms. Glacial moraines, eskers, and kames are examples. Drumlins and ribbed moraines are other landforms left by receding glaciers.
Glaciers form on land and are composed of falling snow that has been compressed into ice over many centuries. The pull of gravity causes them to move slowly downward. The majority of the world's glaciers are found in the polar regions, such as Greenland, the Canadian Arctic, and Antarctica.
A moraine is the material left by a moving glacier. Typically, this material is soil and rock. Similarly to how rivers transport debris and silt that eventually builds up to form deltas, glaciers transport dirt and boulders that eventually build up to form moraines.
MacArthur wants to impress his listeners; Long wants to make them think.
<u>Explanation:
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MacArthur has spoken in his speech in the most articulate way about the sacrifice that the men of the country make to secure the well-being of citizens of the nations. The language is intended at making the listeners comply with his words by influencing and impressing them.
On the other hand, Long is trying to acquaint his listeners to the truth of the society that he has devised to be deteriorating the lives of common people of the United States.