When the atmosphere has too much carbon dioxide in it, the oceans absorb some of it to achieve a new balance. this is an example of

The answer is c establishing proper sleep hygiene

Are you asking about a street map usage  if so here is your answer  a street map for a very limited area could simply be a bit map or a .jpg image.  but a more general map would probably store the streets as vectors.  but you shouldn't assume that there is one way to do it

Aplant cell has vacuoles and a cell wall

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