Answer:
The reason why they put numbers on a thermometer is because the number indicates the temperature. The reason why they put marks is to show that the thermometer has liquid on the.
Explanation:
This is my answer I hope it is right!!
True i am very sure this question asked is true is my final answer
If a person were using this source and the tables to which it refers to a primary source.
I think the answer is B) a primary source since in most research projects it's important to use primary instead of secondary sources!
~ Hope I helped & Good luck!
