It features scenes of farmers tilling soil, majestic mountain roads, sedimentary rock formations, and granite and marble quarries.

Beneath the crust of North America, scientists have found that the deep roots of the continent are slowly dripping away in ...

Whether sedimentary rocks store fossil hydrocarbons or act as impermeable layers to prevent the rise of oil, natural gas or ...

A compound is a substance that contains two or more elements close elementA pure substance that is made from only one type of atom. Elements are listed on the periodic table. Elements cannot be ...