Question

drag the right word to its definition
a deep valley or ravine,
usually with a stream or
river running through it.

gravity
sediment
canyon

Explanation:

We need to match the definition "a deep valley or ravine, usually with a stream or river running through it" to the correct word. "Gravity" is a force, "sediment" is material deposited by water, wind, etc. "Canyon" fits the definition of a deep valley with a stream/river.

Answer:

The word that matches the definition is canyon (the green circle labeled "canyon" should be dragged to the definition box).