Identify and explain three ways that utilized local or regional geography or modified the land to assist with agriculture.

By giving out loans to farmers without interest

By educating farmers

Provision of instrument for farmers by government

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."

answer; ///he could not explain why the continents drifted;