Get a magnet in a bag (inside out) and move the magnet all over the sand/iron and you can collect all the iron and turn the bag right side out and zip up the bag. Now you have the sand and iron separated and it will be harder to accidentally mix them later.
3 mass number- proton number
Hello
The word is "pollution"
Hope this helps and have a great day!
Answer: The answer is A. A conductor that allows electricity to flow easily
The answer is A how it react with other chemicals
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