The answer is A because it is used in most industries to create a blueish purple glaze for pottery. I hope that I could be a help and contact me if you need my help! If you can please mark this brainliest! Have a great day!
Number one is number 4 and number two is number 2
Answer:
Mnemonic devices help learning easier by coming up with some "nonsense" phrases like:
Please P Parenthesis
Excuse E Exponents
My M Multiplication
Dear D Division
Aunt A Addition
Sally S Subtraction
(Just an example)
Some might be more effective than others because they ae easier to remember.
<span>(violin, viola, cello and double bass).
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