These plants lack flowers and seeds. which of the following is described by this star?

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.

As an asteroid comes close to earth, it's name will change to? apex

Injuries in the environment are a result of