y is the sand... ???

Question

y is the found only on beaches or at lake shores ???
there r diff kinds of sand but the one that is found by any beach is not found every where, y is it so?

Answer 1

Thanks for the reminder that sand is so cool!

If you've never seen sand dunes, look at the 3rd link. While one-quarter to one-third of the world's deserts are covered with sand, little research has taken place in ergs (sand-covered desert areas) relative to non-sandy areas. FILLED with great info!

The second link is a collection of pictures of different sands from around the world! (They have 4200 samples of various sands!)

Sand means different things to different people. A genteral, non-technical dictionary definition for sand is "loose particles of hard broken rock". More restrictive definitions als exist which
depend upon the frame of reference or academic discipline to which the meaning of sand is to be applied. For example, to a sedimentologist sand is an unconsolidated (loose), rounded to
angular rock fragment or minteral grain having a diameter in the range of 1/16 to 2 mm (0.0025 to 0.08 in.). An engineer
on the other hand may restrict the meaning of sand to include only rounded framents having a diameter of 0.074 mm.

Answer 2

Sand deposits wherever they are found are the result of a combination of erosion, which breaks down larger rocks and a sorting process whereby the sand and other erosion products are carried and eventually dropped by either water or wind. Bigger rocks like gravel are dropped much sooner and form gravel beds. Smaller rocks like dust or silt is carried much farther than the sand and form clay, silt or soil deposits. That process causes the sand sized rocks to all drop out together in a sand deposit like a beach or a desert sand dune.

Answer 3

Sand is found on beaches, the sea floor, lake shores and also in deserts and parts of the world which are geologically quite old, as it is created by the erosion and wearing out of particles from bigger rocks. Even beach sand can vary from location to location, from pure white to red to black. It all depends on the ingredients, eg the silica, quartz, etc....

Answer 4

sand at the beach, along rivers, and lakes are rocks that are constantly being broken down by the movement of water.some minerals in a rock dissolve, the harder bits of mineral remain. Now here in the desert, and the sahara and other deserts, that sand could have been on the bottom of ancient seas which are long gone, but its also created constantly by the action of wind wearing away rock similar to how water wears it away, the wind blows sand at rocks and the sand blasts away at the rock till the rock is just particles of sand too.

Answer 5

sand is a product of soil erosion under the sea/lake. washes up to the shore by waves. kind of sand depends on what type of soil/rocks beneath the sea or lake.

Answer 6

Sand is the result of billions of years of waves crashing against rocks, breaking them into teensy pieces.

Answer 7

Because when the water breaks it picks up all these coral and shells and what not which breaks into little tiny pieces that make sand.

Answer 8

There is beach right underneith your feet. It's just damped by dew and rain and permafrost.

Sand+wet=dirt

Answer 9

Not true there is sand in deserts.

Answer 10

super awesome question. I have thought about it as well for so long. My teacher had explained it when i was a kid, but forgot now.