Explain why modern technologies have caused rapid change in agricultural industries in present-day united states and canada.

Which is not a standard weather variable? a. air pressure b. moon phase c. temperature d. wind speed

What is the difference between emigrate and immigrate? ?

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