Answer:
Universal indicator is a mixture of many different indicators which gives different colours at different pH values of the entire pH scale. It is used to obtain an idea of how acidic or basic a substance is.
Answer:
I think it would be A but it might be B please tell if wrong
Answer: High Precision
Explanation: It's High Precision because it's not accurate but close to 40 degrees Celsius.
D. scientific notation is (insert decimal number) x10^(however many 0's there are)