How do we know that the southern hemisphere of mars is older than the northern hemisphere?

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.

Hurry! according to the map above, there are major types of natural resources in india. a. 4 b.5 c.10 d.16

American consumption has had which of the following effects on the environment?