Which of the following statements is INCORRECT? O A gas to a liquid is called condensation.
O A liquid to a solid is called freezing.
A solid to a liquid is called melting.
O A solid to a gas is called deposition.

Explanation is in the file

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D a solid to a gas is called deposition.

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.