Answer and u get 10 points from me.answer it first and get it right?

Question

Compare a beach made of sand with one made of pebbles. What factors may account for the difference in the makeup of the beaches?

Answer 1

hmmm........

Answer 2

A beach of pebbles is in a dynamic environment with swifter currents .  When the currents are swift only the heavier particles (pebbles) will remain.  Sand will be carried away.  In somewhat calmer currents, the sand will remain and the smaller particles (silts and clays) will be carried away.

Answer 3

There could be lots of factors, depending on the deposition of the rock/sand, transportation of material, the weathering and erosion, and the impact of surrounding glaciers/rivers/seas/land slope/humans, etc.

Usually where you see pebble beaches, water, as in a stream or river or even an underwater current, such as that in the Gulf Stream,  has probably carried rocks and smoothed and rounded them during the process, depositing them where they are.  Glaciers are also responsible for the transportation of rocks and sediment.

In a sandy beach, often the ocean waves and weather cause erosion of the rocks/minerals in the surrounding geology

transportation, glaciation, weathering and erosion and the geology of the area all account for the difference in makeup between the two types

Answer 4

Factors?

1: Age - If a beach has been formed from a volcanic eruption more recently, the rocks would not have had as much time to break down.

2: Current strength - If the currents around the beach are relatively swift, the heavier particles (like pebbles) would not be swept out as far, while the smaller ones would still drift away.

3: Location - Sandier water, a nearby river mouth (and thus, silt deposits) and other geographical factors can affect beach composition.

4: Material - Depending on what minerals make up the sand, some lend themselves to forming - and remaining in - bigger, rougher pieces, while others, being more brittle, lend themselves to crumbling into smaller, finer pieces.

Answer 5

It all would depend on the wave -current dynamics in and around the beach. It means the slope, the  wind pattern, the long shore current pattern etc.

If long shore current is strong the finer particles like sand  gets transported away i.e. the beach in under rapid erosion and only large size particles like pebbles stays back.

thnks

Answer 6

[choose me as a best answer tiffany!!!]

Answer 7

Yeah what Jim Z said