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sandy soil
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What rock is found near lakes and riverbeds?
sedimenry rocks
Is quartz an important component of sands in riverbeds and on beaches?
Yes it is, sand grains are commonly made from quartz.
Was the Sahara desert always filled with sand?
No, underground scans show many riverbeds and there is evidence of it having been heavily forested during the last few ice ages.
In africawadis are riverbeds that are?
Usually dry.
Why is riverbeds silent?
because they are in the river
Where is sand mostly found?
Sand is mostly found under ground.
Abrasion is an example of?
riverbeds alone the shore
Is a sandwich a mechanical mixture?
Sand primarily constitutes beaches, riverbeds and deserts. It is a mechanical mixture formed from the abrasion of two substances, water and rocks.
What are riverbeds most commonly made of?
Riverbeds are most commonly made of small little pebbles that have been moved around from the current of the river. It is also made up of dirt and small pieces of gravel and rocks. Riverbeds never stay the same they are always changing.
What two features found on mars that provide evidence for the possibility of liquid water on the planet?
Dry riverbeds and sedimentary substances that can only be formed in a liquid environment.
What are the dried riverbeds in Egypt called?
known as a wadi
What are riverbeds that are dry most of the year?
Wadi(s)
