Prehistory and Early Human Migration Answers

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A major cause of the agricultural revolution was the .

A
decline of rainfall around the world
B
increase in rainfall around the world
C
warming of the Earth after the Ice Age
D
cooling of the Earth during the Ice Age
3

A major effect of the agricultural revolution was .

A
a less reliable food supply
B
the creation of a food surplus
C
a decline in the number of people farming
6

Different plants were domesticated to grow crops .

A
everywhere except the Americas
B
only in the Fertile Crescent
C
in many parts of the world
8

How did new tools benefit early farmers? Choose three answers.New tools saved early humans labor and time.New tools allowed early humans to grow plants without water.New tools allowed early humans to plant and harvest more food.New tools helped early humans develop new seeds for planting.New tools helped early humans prepare the soil and harvest grains quickly.

A
New tools saved early humans labor and time.
B
New tools allowed early humans to grow plants without water.
C
New tools allowed early humans to plant and harvest more food.
D
New tools helped early humans develop new seeds for planting.
E
New tools helped early humans prepare the soil and harvest grains quickly.

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