B, because it's not an advantage for something to be expensive and time consuming
Answer:
The mass of a proton in scientific notation, is 1.67×10-27kg.
Explanation:
Science method. like the gemdas is math there’s a process for science which depends on chem or bio.
I believe the answer is respiration
Answer:
a process where living organisms develop and change during the history of earth to help them survive
