ESS
Grade-9
Easy
Question
Generally stars produce heat and light by fusing ________ into __________.
- Helium, nitrogen
- Hydrogen, helium
- Helium, hydrogen
- Hydrogen, nitrogen
Hint:
Stars use nuclear fusion to generate energy.
The correct answer is: Hydrogen, helium
- Stars use two hydrogen atoms and fuse them under immense pressure.
- Helium and energy is formed as products.
- Generally stars produce heat and light by fusing ____Hydrogen____ into ________Helium__.
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