All substances can be classified as volatile or inert organic or inorganic sugar or salt oxidized or reduced

Organic or inorganic

Explanation: All the substances can be classified into two categories one is organic and other one is inorganic.

The substances that is made up of carbon atoms and hydrogen atoms to from hydrocarbon. These substances are known as organic compounds. Example: nucleic acid, fatty acid, et cetera.

Inorganic compounds does not contain carbon in it. It might have some carbon atoms but the amount of carbon is so low that it cannot be used to form bonds. Example: Salt, metal et cetera.

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.