How much percentage of Carbon element makes the human body?
a) 30.5%
b) 9.5%
c) 18.5%
d) 65%
How much percentage of Hydrogen element makes the human body?
a) 3%
b) 9.5%
c) 18%
d) 65%
99% of the human body is made up of …….elements?
a) six
b) ten
c) nine
d) eleven
Which of the following is the chemical symbol used for Helium element?
a) H
b) He
c)Hm
d) Li
Which of the following is the chemical symbol used for Lithium element?
a)Lm
b) L
c) li
d) Li
Which of the following is the chemical symbol used for Beryllium element?
a) B
b) Be
c) be
d) Bm
