How many grams of carbon dioxide are needed to extract 8 grams of oxygen in the photosynthesis reaction?
Deliverance done (written and equated reaction equation, set proportion and appropriate calculating operations, units of measurement please)

Polar bears give birth and hunt on sea ice. which of the following would polar bears survive during the melting of arctic ice? growing another layer of fur during summer migrate inland to search for different food sources staying put until the ice refreezes sticking to the usual diet of seals