Before the Dust Bowl era, farmers had failed to rotate crops or , which contributed to severe topsoil erosion in the Great Plains. a. plant windbreaks b. store enough groundwater for irrigation c. establish early farm relief organizations d. fertilize farmland

What was one of the difficulties adams faced as president? a. european countries were trying to move back in on u.s. lands b. possible war with england; fighting between political parties c. problems with spain; trade disputes with russia d. census issues; problems with selecting a new capital

Prior to the presence of europeans on the continent, the slave trade in africa a) did not exist in any form. b) was limited to internal trade only. c) included the trans-saharan and indian ocean slave trade. d) was rarely needed due to the lack of an agricultural economy.

Brainliestttme : ) -what reforms were made in communist china?