Why do acids not show acidic behavior in the absence of water?A light-year is a measurement of distance and not time (as the name might suggest). A light-year is the distance a beam of light travels in a single Earth year, or 6 trillion miles (9.7 trillion kilometers). On the scale of the universe, measuring distances in miles or kilometers doesn't cut it
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the formation of new areeas of oceanic crust which occurs through the magma at ridges and its subsequent outward movement on either side</span>
