Refer to the Figure

question 167

Essay

Refer to the figure. Study the maps showing changes in vegetation in the eastern United States since the last ice age, 18,000 years ago (18 ka).Describe the change in patterns for mixed forest, deciduous forest, and southeast forest.What general conclusions can you draw about the movement of vegetation as ice melted and receded to the north? How does this pattern relate to changes occurring today?

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Definitions:

Product

An item or substance that is manufactured or refined for sale.

Multiplying

The mathematical operation of increasing one number by the value of another, resulting in a total that is the product of the two numbers.

Kilo-

A prefix in the metric system representing one thousand (1000) of the unit it precedes.

Decimal

Numbers that are expressed as a fraction of a part using 10 as its base number; it also refers to the period used to separate a whole number from a fraction, as in 10.2, otherwise read as “ten and two-tenths.”