Question: What process forms deltas? A. Gravity B. Erosion (C. Deposition) D. Decomposition.  Explain how deltas form.
Reference answer: Earth materials erode and are carried by flowing water (a river). The earth materials form a delta when the materials are dropped off or deposited when the water stops flowing (at the mouth of a river).

Student answer: Like a small river getting big, deltas are formed when a regular river is out to a ocean or lake. Over time the water will erode the mouth into a fan shaped deposit.

Student answer: A river rock earth motional with it and deposits it at the mouth. There is forming a delta.

Student answer: Deltas are earth materials that are carried away by the river and settle.

Student answer: A delta forms at the mouth of a river when earth material is carried away in a river.

Student answer: They come from water and water just keeps on building up.

Student answer: A erosion happen and over the time it forms.

Student answer: The depositions collapsing into them.

Student answer: It forms by a deposit of earth materials at mouth of a stream or river.

Student answer: Deltas are formed because the water takes the sand to the end of the river where it piles up and forms a delta.

Student answer: Delta forms by water or a river.

Student answer: Delta is formed because the mouth is full of water or melted ice.

Student answer: It is formed by a mouth of river of stream.

Student answer: It is formed by amount river or stream.

Student answer: Deltas form by depositions with water.

Student answer: A deposition at the mouth of the river.

Student answer: A delta is formed when water is deposited.

Student answer: Delta is form by different kinds of rock and gravity.

Student answer: I pick gravity because gravity is like process.

Student answer: It forms with gravity because it is like metal and plastic.

Student answer: By earth materials moving then stopping where the delta is.

Student answer: By running water.

Student answer: As the water from the mountain comes and invades the place, it starts the canyon then it meanders around until it comes to another larger body of water and the delta is the end of the lake and beginning of the lake.

Student answer: A canyon is formed and the water pushes the dirt and other materials into a fan shape.

Student answer: Deltas are form by erosion and deposition.

Student answer: Earth materials are carried by water and dropped under the water settling at the bottom of the river.

Student answer: Deltas are formed by deposition that is when earth materials are carried away then let off at another place to form a delta.

Student answer: Deltas form when water is run over a plateau for a long period of time and when the water runs somewhere else, that place where it runs out is a delta.

Student answer: A delta forms whenever a river picks up dirt, sand and clay and carries them to the mouth of the river were it is weakened so it drops the materials and forms a delta.

Student answer: Deltas are formed by water carrying earth materials and not have enough force to push the materials so it lets the materials go.

Student answer: It forms when a river goes to a larger part of water and it leaves particles behind.

Student answer: Sand gets carried away by the river and settles at the mouth and forms a delta.

Student answer: A delta is formed when flowing water pushes sand to opposite sides forming a delta.

Student answer: Deltas form by rivers flowing and pushing sediment to the side.

Student answer: Deltas form by water running over it.