How are the air and water pollution in new mexico alike a) both are worsened by problems of scarcity b) both result from farms and factoriesc) both contribute directly to warming tempatures d) both are likely to increase due to wildfires

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.