Question

sheet erosion is characterized by:
rainwater removing thin layers of topsoil
tiny streams creating channels from rainwater
large streams of water removing enough soil to create gullies
drought caused by a lack of rain

Explanation:

Sheet erosion occurs when rainwater uniformly removes thin layers of top - soil across an area. Tiny streams creating channels is rill erosion, large streams creating gullies is gully erosion, and drought is unrelated to sheet erosion.

Answer:

Rainwater removing thin layers of topsoil