A because 60 divided by 20 is 3 so it is going through 3 stages of half life. 40/2=20 which is one half life then 20/2=10 which is the second half life then 10/2=5 which is the 3rd and final half life
It would be to describe Earth.
Geo- means of or relating to the earth.
-graphy means a descriptive science.
So in a literal sense, it would be to describe earth. :)
B. Guatemala is considered part of middle America. It is located between North America and South America, under Mexico
A & b one of them are right
