Virginia has large deposits of sand and gravel. these are usually found in areas where -

Virginia has many deposits of sand and gravel since these are found on places where once water flowed. Sand and gravel deposits usually can be found in the rivers and beaches. These are usually used for construction of the roads mix with asphalt.

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the