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:

i think it is the third one.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.