No, gravel is extracted from the earth in quarries.
Mostly quartz.
Bmx tracks are made of mostly lime and gravel
sand gravel, asphalt, pavement, concrete, and rebar
The amount of time that gravel can retain water will vary depending on its state. Fine gravel will holder water for long as opposed to coarse gravel.
Concrete is to bread as cement is to flour. Concrete is a mixture of sand, gravel, cement, and water.
they are made from gravel
Highway, interstate, parkway, autobahn, gravel road, any road with a man made surface.
Yes, gravel is a rock
Feels good, man.
The Answer Is Gravel, a size of rock, is a common resource used tobuild roads. It is made of small pieces of rocks andsand. Many roads are made of just gravel. Otherroads are gravel covered with asphalt or concrete.Concrete is a mixture of gravel, sand,water, and cement.
from earths surfce
Mostly quartz.
I don't think so. I think it's made of minerals, but not actually one.
no its made of stuff
Tar or gravel
Bmx tracks are made of mostly lime and gravel
asphalt and gravel mixtureconcreteother surfaces