Which of the following statements describes why the central lowland region is primarily tall-grassland prairies?

a) recurrent natural fires prevented trees from growing.
b) generally, there is insufficient rainfall to support trees.
c) cold air masses continually descend from the north.
d) only grass can grow on the marshy lands.

(1) which phrase describes an important agricultural change that occurred during the mississippian period? (a) first cultivation of wild grains (b) expansion of marsh elder farming (c) spread of corn agriculture (d) gathering of nuts and berries (2) which group of native americans use northwestern arkansas as it’s traditional hunting grounds? (a) osage (b) quapaw (c) woodland (d) caddo

Soweto was the site of one of the that swept across south africa in the late 1970s. in his effort to end apartheid, desmond tutu turned to . the united states responded to south africa’s apartheid policy in the 1980s by .

How has industrialization hurt the forest of europe