By looking at them with the microscope and analyzing it and then use the zoom and zoom it in more to get a better view of the molecules
One fourth means (one half) of (one half) .
So the 18 months must be two half-lifes.
The half-life of this particular isotope is 9 months.
Answer:
yes because my mother is is an a type and im an -o type
Explanation:
A,C, D.. Those are correct ..
