Galvanizing protects from rust in a number of ways: It forms a barrier that prevents corrosive substances from reaching the underlying steel or iron. The zinc serves as a sacrificial anode so that even if the coating is scratched, the exposed steel will still be protected by the remaining zinc.
Answer:3.
Explanation:when performing trace analyses and the analyte may adsorb to the glass.
Because it contain very high carbon contend as compare to paper
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