Answer:
health is most important. Scince is composition on physics,chemistry ,biology astronomy and other subjects. only boilogy represents health. But only biology isnot inlisted so that the health education is an applied science ratger than a pure science.
Answer:
That it is bad. And should not continue
Percentage error is the difference between the estimated number and the actual number in comparison to the actual number expressed in percent format..
Hope this is what you asked for?