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- 1. Multiple Choice
Which of the following refers to the process of producing the light elements such as hydrogen and helium?
Cosmic ray spallation
Big Bang Nucleosynthesis
Stellar Nucleosynthesis
Nuclear fusion
- 2. Multiple Choice
Which of the following describes stellar nucleosynthesis?
The process of which elements are formed within the stars.
The formation of elements during a supernova explosion.
The process in which elements are produced in gas clouds.
The formation of light elements such as hydrogen and helium.
- 3. Multiple Choice
How did the clouds of gas and dust pull together leading to formation of protostar?
Due to decrease of temperature in the universe
Due to gravity
Due to increase of pressure
Due to the electromagnetic force
- 4. Multiple Choice
Which are the two (2) most abundant elements in the universe? (Click 2 answers.)
Oxygen
Hydrogen
Lithium
Helium
- 5. Fill in the Blank
There are ________ number of elements formed during the Carbon- Nitrogen- Oxygen (CNO) Cycle during the stellar nucleosynthesis. (Your answer must be a number.)
- 6. Multiple Choice
Aside from hydrogen and helium, which of the following are the other two (2) light elements being formed during the Big Bang nucleosynthesis? (Click 2 answers.)
Carbon
Nitrogen
Lithium
Helium
Beryllium
- 7. Multiple Choice
Which is TRUE about beryllium- 7?
Formed during stellar nucleosynthesis
Formed after fusion of helium- 3 and helium- 4
Formed after fusion of helium- 4 and hydrogen- 3
Lightest element formed in the universe
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