To make a 4 cup pot of green tea, one must heat the water to the boiling point at standard pressure. If the pot contains 680 grams of water, and the temperature at the tap is 20.0°C, how much heat must be absorbed by the water? (Use 4.18 J/g °C for the specific heat of water; water boils at 100oC)

answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.

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.