PLZ HELP M If polar ice falls into the ocean, which two spheres are interacting?

A the hydrosphere and the geosphere
B the atmosphere and the biosphere
C the hydrosphere and cryosphere
D the geosphere and the atmosphere

Which would prevent a plant from growing

To be or not to be that is da question

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.