I THINK IT IS 16 BECAUSE THE ATOMIC NUMBER AND THE NUMBER OF PROTONS ARE THE SAME
I believe it’s because they are trying to find other things that won’t pollute the environment as much, and they are also doing this because we are trying to reduce green house gas. Sorry if i’m wrong :(
Answer:
argon
Explanation:
argon inhibits evaporation, and prevents corrosion
360 seconds?
i’m guessing that is the answer as the question is unreasonable