Irrigation machinery has the amount of irrigated land in the us. a. doubled b. tripled c. quadrupled d. quintupled

Which is a possible result of higher air temperatures caused by global warming? a. increase in sea level b. freezing of polar ice caps c. rapid evaporation of water in the soil d. flooding of low-lying coastal areas

Gemstones are commonly found in pegmatites, which are igneous rocks that are a. exceptionally mafic b. exceptionally coarse grained c. exceptionally fine grained d. extrusive, forming from lava

The hebrews originally migrated from a. india b. egypt c. arabia d. mesopotamia