A delta is formed by deposition of sediment at the mouth of a river by water fanning out.
Deltas are usually fan-shaped deposits of sediment that form where currents slow at a river's mouth.
Fan-shaped deposits of sediment form at the mouth of rivers.
Fan-shaped deposits of sediment form where?
Options:
[1] mouth of rivers
[2] bottom of oceans
[3] flooding
[4] near the shoreline
[5] the Great Barrier Reef
[6] entrance of puddles
[7] unidirectional
[8] top of canyons