Although _[blank]_ makes up 78% of the earth's atmosphere, it is not directly usable by most living organisms.
carbon dioxide
nitrogen gas
phosphorus
water vapor

Although Nitrogen Gas makes up 78% of the Earth's atmosphere, it is not directly usable by most living organisms.

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post-impressionism is a predominantly french art movement that developed roughly between 1886 and 1905, from the last impressionist exhibition to the birth of fauvism. post-impressionism emerged as a reaction against impressionists' concern for the naturalistic depiction of light and colour.

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