Which angle is a vertical angle with angleefd?

a. angledfb
b. angleced
c. anglebfc
d. angleafb

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.

Scientists think that convection currents flow in earth’s a. continents. b. mantle. c. lithosphere. d. inner core.

According to speculation and study, what will happen to the global birth rate in about 40 years? (1 point)