Please answer this question i have tried to do this 8 times please help me 50 points

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.

What is unusual about the iraq mountains ,in spite of their old age?

Most tornadoes carry winds speeds in a range of km per hour