Defend A classmate states that continental drift could not be possible because it would
take far too much force to move tectonic
plates. Describe the hypotheses scientists use
to explain the
movement of tectonic plates.
Which hypothesis do many scientists think
may explain the great force needed to
move
plates?

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.