I don't know

This page lists questions and answers that were posted by visitors named I don't know.

Questions

The following questions were asked by visitors named I don't know.

How are LASERS produced? Is it a useful daily source of light?

Answers

The following answers were posted by visitors named I don't know.

I think these three are the first correct 1.b (-3, 2) 2.b (8, 5) c.d (5, 28) I don't know yet

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