4 difference between earthquakes and landslides

i had learned this a couple days ago an earthquake is sudden and while happening rapid shaking of the earth caused by the breaking and shifting of rock deeply underneath the ground . In a landslide masses of rock move down a slope. they can also be actitivated by storms, fires, earthquakes , and volcanic eruptiions

Explanation:

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."

where is the passage