Which agricultural innovation increased production in the 1700s?
a cash crops
b. four-crop rotations
plantations
d. hybrids

7. according to the theory of isostasy, which statement must be true? a. the asthenosphere is denser than the lithosphere. b. the asthenosphere has the same density as the lithosphere. c. the lithosphere has the same density as the core. d. the lithosphere is denser than the asthenosphere.

What was one effect of european influence on southeast asia? new roads and railroads were constructed. rulers built palaces in the european architectural style. the vietnamese absorbed much of the european culture. the islamic religion spread throughout the region.

If scientists only detect p waves in a certain layer of earths interior what does that tell us?