El Nino happens when there is warmer water near the west coast of South America. Why do scientists collect information about air temperatures in order to help them predict El Nino and La Nina?

what's the rest of the question

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

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x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects