Answer:
Neon (Ne), chemical element, inert gas of Group 18 (noble gases) of the periodic table, used in electric signs and fluorescent lamps. Colourless, odourless, tasteless, and lighter than air, neon gas occurs in minute quantities in Earth's atmosphere and trapped within the rocks of Earth's crust.
Explanation:
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It is important to maintain septic systems in order to <span>prevent untreated sewage from contaminating groundwater</span>
Friction occurs when the surfaces and heat of two surfaces grind against each other.
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