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a) the warming of Alaska.
b) the death of water creatures and plants.
c) piles of underwater plants and animals.
d) how the earth was different millions of years ago.
Piles were dug up by -
a) men and women.
b) animals.
c) earthquakes.
d) changes in the surface of the earth.
The piles are made up of -
a) rock.
b) dirt.
c) creatures and plants.
d) minerals.
We learned that Alaska was once warm from -
a) plants from millions of years ago.
b) animals from millions of years ago.
c) Alaskan climate.
d) Alaskan lakes.
Text B. North America is changing. The sea tears away some coasts and builds up others. Rivers cut away their banks, and hills and mountains are worn away. Some of the Western mountains seem to be slowly rising. The coast of New Jersey is sinking about two feet in a hundred years. The land in Canada toward the Hudson Bay is rising; some day, thousands or millions of years from now, the water in the Great Lakes might possibly find its way into the Mississippi River, as it did long ago, instead of into the St. Lawrence River.
This story is mainly about -
a) changes in the earth of North America.
b) the wearing away of the land.
c) changes in Canada and New Jersey.
d) what might happen to water in the Great Lakes.
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| I. Прочитайте текст и заполните пропуски 1- 5 в нем, используя части предложений A- F. | | | Water in the Great Lakes might someday flow into the Mississippi River because - |