When people work with volatile organic compounds, why should they wear special masks
that cover their noses and mouths

The fauces connects which of th following structures to the oropharynx

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

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?