Commercial Agriculture frees people in Europe to .

A. Grow their own food.
B. Work outside agriculture
C. Spend more time fishing
D. Live in rural areas

Impressions of tropical swamp plants were observed on rocks in polar regions. the impressions were dark black imprints, which means the fossils are examples of ( 1 ) the fossils tell us that polar regions ( 2 ) ( 1 ) a. carbonization b. mineralization c. trace fossils ( 2 ) a. had tropical plants that can grow in ice b. might have had a diffierent climate in the past c. will have abundent vegitation

Many areas surrounding the caspian sea contain important a. rare minerals b. forestry resources c. gold and silver mines d. oil and natural gas fields

Because its government strictly controls its economy, north korea has a economy. a. command b. mixed c. traditional d. free market