The Telescope Is An Instrument That Helps To Observe The Distant Objects By Collecting Electromagnetic Waves (such...
READ MOREThe Magnifying Glass Is Composed Of A Lens And A Pile. The Lens Of The Magnifying Glass Is Convex Lens. The C...
READ MOREFirst, Receive A Folding Tent, Open Its Packaging And Cannot Use Sharp Objects, And Use Keys Or Pencils To Open...
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