is an alcohol made from the fermentation of sugars and starches that can be used as a replacement for petroleum-based fuels. Barrage

Geothermal

Biomass

Ethanol

Reasons for factor mobility of a combine harvester, cotton, an oil platforn and a woodland

Which environmental change allowed people to travel by land between asia and north america a. human apaption to arctic environments b. the introduction to horses to north america c. the formation of ice sheets on land d. a rise in ocean temperatures

For the united state human rights have been tied to support for