1. What sized sediments (e.g. boulders, gravel, sand, clay, silt, and mud) abund

Question

1.     What sized sediments (e.g. boulders, gravel, sand, clay, silt, and mud) abundantly transported by rivers and streams typically accumulate on the beach?

2.     What sized sediments transported by rivers, streams, and waves are typically carried out to sea?

3.     What two scientific questions guide our study of beaches?

4.     What causes solid rock to break down into smaller particles?

5.     How does the rock debris get to the ocean?

6.     What happens to the rock debris along the way from the mountains to the ocean?

7.     What happens to sand castles built below the high tide line?

8.     What happens to sand grains when a wave washes up on a beach?

Explanation / Answer

Ans 1.

Sediments carried by rivers and streams depend largely upon their sizes. When mountains get eroded, rivers carry the sediments to the sea. The finer particles such as sand are carried in suspension and is accumulated near shore or off shore. Thus the beach pattern is shaped by wave pattern. As the deposits of sand is through the waves. Beach and waves exist in dynamic equilibrium.

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