According to the report by the center for disease control, which statement is not true about the majority of the nation's youth?
a. they are inactive.
b. they are unfit.
c. they are overweight.
d. they are underweight.

answer: i don't know the answer good luck

explanation:

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

the components of a vector are the parts of the vectors that are to each other.

b perpendicular