Which of the following can be produced at an oceancontinental convergence?
a. a continental volcanic arc
b. a volcanic island arc
c. a shrinking ocean basin
d. a graben bounded by horsts

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.

Formidable obstacles of climate, terrain, and distance hinder exploitation of natural resources in russia. true false

Which australian state leads the nation in the production of dairy products? a. western australia b. northern territory c. queensland d. victoria