Which led to the dust storms of the 1930s? the consolidation of small farms
the removal of grass
the creation of cattle ranches
the use of dry farming

How did inca develop their road system? a) they used mortar to hold the stones together.b) they built suspension bridges over rivers. c) they mixed copper and stone together to make the blocks.d) they laid roads in the cities, not in the less densely populated deserts.

Which of the following was a bold new idea expressed in the declaration of indenpendnce?

Which of the following statements accurately differentiates elites from commoners in maya