It is by looking on the dates of the paper.
Hoped this helped.
~Bob Ross®
Answer:
Hey!
Your answer is Calcium Phosphate!
Explanation:
It is the substance/mineral that is mostly found in our teeth and bones!
HOPE THIS HELPS!!
What your question for number 3
The answer is 123
Brainliest??
Answer:
adding more water to the container
Explanation: because it would cause it to soak up the fluid to created a substance again