What is an example of a non renewable resource

Why aren't the stains like crystal violet and safranin washed away with water during simple staining?

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat