Question

Which is the main fuel for nuclear fusion in all stars?(1 point)
Responses

nitrogen
nitrogen

carbon
carbon

hydrogen
hydrogen

helium
helium
Question 2
Which is the heaviest element produced in large stars by nuclear fusion near the end of their life cycle?(1 point)
Responses

beryllium
beryllium

iron
iron

uranium
uranium

helium
helium
Question 3
Which of these is a light element?(1 point)
Responses

lithium
lithium

oxygen
oxygen

iron
iron

carbon

Answer 1

1. The main fuel for nuclear fusion in all stars is **hydrogen**.

2. The heaviest element produced in large stars by nuclear fusion near the end of their life cycle is **iron**.

3. Among the listed options, a light element is **lithium**.