Sandbars and sand dunes are both sand piled on top of sand by the pressure of currents. Sandbars are accomplished by the action of water currents (waves). Sand dunes by air currents (wind).
The "sand dunes and deltas" are similar to that they are both "formed by weathering".
no
Sandbars can be classified into submerged sandbars that lie underwater and emerge during low tide, exposed sandbars that are visible above water at all times, and offshore sandbars that are found further out to sea. Other types include crescentic sandbars that curve in a crescent shape, recurved sandbars with a concave shoreline, and straight sandbars that run parallel to the coast.
They have the same rocks
Erosion and weathering is what makes any canyon smaller, and it also starts canyons.
The Grand Canyon is made of limestone.
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no
Yes, sandbars can be formed by erosion and deposition processes caused by waves. When waves break near the shore, they can move and redistribute sand, creating sandbars. Erosion can also play a role in shaping sandbars by wearing away material from one place and depositing it in another.
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From the green growth (moss, etc.) on the canyon walls that makes it look like copper ore.
The grand canyon