What do both the Senate and the House of Representatives require of people running for election? They must be at least 30 years old.
They must be a resident of a US state.
They must have experience in state government.
They must have lived in the US as a citizen for 10 years.

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.

The meseta in spain is a a. navigable river b. castle c. coastal plain d.plateau

During which era in earth's history were the first insects? mesozoic precambrian cenozoic paleozoic