Answer:
D
Step-by-step explanation:
D is the answer because in all of the measures of center the first row is smaller than the second.
T because carbon is only found in living organisms.
Parallel is when the lines go the same direction and never touch whereas perpendicular lines are when the lines cross each other so the they are like a plus sign with all 90 degree angles. Hope i helped.
its A.........dont u have a calculator
Answer:
21
Step-by-step explanation:
