How does an increase in atmospheric carbon dioxide effect the oceans? Choose all that apply:

It causes them to dry-up and shrink in size.

It causes them to be warmer.

It causes sea levels to rise.

It causes them to be more acidic.

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oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.