Which of the following is a serious threat to underground water supplies

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.

True or false multiple lane changes must be done individually going through the same procedures for each lane change

When energy is used, atp molecules convert to adp molecules. this process is called