Streams are different from gullies because it doesn't dry up.
Both have to do with water
Unlike gullies, streams rarely dry up completely because they have a continuous flow of water. Streams are fed by various sources like springs, rainwater, or melting snow, which help to maintain a steady flow even in dry seasons.
A network of gullies, streams, and rivers in an area
A network of rills, gullies, streams, and rivers in an area.
A network of rills, gullies, streams, and rivers in an area.
Ephemeral streams are streams that only have running surface water after a rain storm. During most of the year they are dry gullies or arroyos.
The network of rills, gullies, streams, and rivers in an area is often referred to as a watershed or river basin. This system of interconnected waterways ultimately drains into a common body of water, such as a lake or ocean.
Precipitation -- rain and snow cause flowing water in nature.
Runoff causes erosion which makes ripples in the ground and the some ripples turn into gullies (small rivers or streams) that may end up like the Grand Canyon..
Ephemeral streams are streams that only have running surface water after a rain storm. During most of the year they are dry gullies or arroyos.
Nothing Natural features would include changing elevations (gullies right up to mountains), volcanos, rivers/streams/creeks, and vegetation.
The plural of gully is gullies. As in "this is the gullies".