Which of these is a light element?(1 point)

Question

Responses

carbon
carbon

iron
iron

oxygen
oxygen

lithium

Answer 1

lithium

Answer 2

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

helium
helium

nitrogen
nitrogen

hydrogen
hydrogen

carbon

Answer 3

hydrogen

Answer 4

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

beryllium
beryllium

helium
helium

iron
iron

uranium

Answer 5

uranium

Answer 6

are those answers correct?

Answer 7

No, the correct answers are:
1. hydrogen
2. iron

Answer 8

Yea they are