B would be the false statement
$0.05 is the price per ounce.
Desert. lots and lots of desert. all desert
Tectonically stable means that this part of the continent has not moved for billions of years. The rock formation is important understanding the history of Earth since its unmoved and untouched state can provide ideas about how the Earth looked like as seen on the layers of the rock formation.
The answer is cementation that is a major process.
