Question

4. When a star is on the main sequence, it is (1 point)

O converting hydrogen into helium through nuclear fusion
O converting uranium into helium through nuclear fusion
O burning hydrogen and oxygen to make heavier elements
burning radiolactive elements to create lighter elements

Answer 1

converting hydrogen into helium through nuclear fusion

Step-by-step explanation:

Main sequence stars fuse hydrogen atoms to form helium atoms in their cores.