Some carbon can get stored for extremely long periods of time as ​

What are the seven economic and social goals?

Diffusion and osmosis are forms of passive transport

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.