Question

what is increas and decreas

Answer 1

Answer:

When used as nouns, decrease means an amount by which a quantity is decreased, whereas increase means an amount by which a quantity is increased. When used as verbs, decrease means of a quantity, to become smaller, whereas increase means (of a quantity, etc.) to become larger or greater.

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Answer 2

Answer:

increase - the numbers or other things get higher in a  time period.

decrease- the numbers or other things get lower in a time period.