Opacity is the extent to which something blocks light. You can change the opacity of layers, filters, and effects so that more (or less) of the underlying image shows through.
the answer is "Paper-based Accounting"
Answer:
chemistry is very important because everything you do is chemistry . our body is made up of chemicals . chemicals reactions occurs when be breathe ,eat , etc . All matter is made of chemicals so that chemistry is very important in our life
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