Lava lamps are a great example of how fluids transfer heat! which of the earth's layers transfer heat in this fashion? plate boundary

Which of the following statements best characterizes changes to agriculture in the united states since 1900? a. increased mechanization has reduced the need for labor. b. increased mechanization has increased the need for water, thereby increasing the need for labor. increased mechanization has increased the use of land, thereby increasing the need for labor. d. increased mechanization has increased food production, thereby increasing the need for labor. select the best answer from the choices provided.

Solve for r in the formula v = ir, when i = 5 and v = 15.

What are the answers for the following questions?