70% of rubbing alcohol is made up of water & alcohol that is used as antiseptic and disinfectant. Which of the following is the solute? a. 30 parts alcohol
b. 70 parts water
c. 30 parts water
d. 70 parts alcohol

it is the most commonly accepted one

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.