Write a 2‐3 sentence summary about waves.

Which of the following best describes brazil's economy from 1650-1880? a. it gradually shifted to manufacturing as the industrial revolution progressed. b. it was based on mining. c. it was based on plantation agriculture, where slaves served as a labor force. d. it was based on small, family-owned farms.

Which is a result of the emission from the use of fossil fuel

Which layer surrounds the center of the earth? a: crust b: core c: mantle