The answer is A. Continuum
The answer is simple currently I am in 9th and scored more than 90 percent by following methods:
1) sleep early and rise early ( it really helps)
2) Eat healthy food ( It keeps out brain active)
3) DO NOT PROCRASTINATE
4)Study on time and take break after every 1 hour
5) Do exercise it improves blood circulation (Helps brain)
6)Dont eat sweet and oily food
Answer:lungs. I am only ten. ♀️
Explanation:
A metal ball and a wooden ball