Yes, The British Virgin Islands export rum, fresh fish, fruit , gravel and sand. They import about 7 times more goods than they export.
The United States exported 1.4 million metric tons of industrial sand and gravel in 2003, primarily to Canada and Mexico.
Sand and gravel are dug out of open quarries on the surface.
Sand and gravel can be separated by sifting them through a mesh, that will allow the sand to fall through, but will hold back the gravel.
Gravel and sand are broken rocks.
Sand and gravel are dug out of open quarries on the surface.
Sand and gravel together
Philippines main export is electronics.
A standard dump truck can haul approximately six cubic meters of sand. Sand and gravel are aggregates for foundations in Philippine construction.
The gravel and sand filter out smaller particles from the water
SAND SAND
Gravel is typically heavier than sand, and therefore gravel would be heavier than both clay and sand. This is because gravel consists of larger-sized particles and has a higher density compared to clay and sand.