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

Try to answer all questions if possible i will take anything this is worth 21 ! ! 1. what rights do citizen's have in a monarchy? 2. what countries practice monarchy? 3. what is one advantage of a monarchy? 4. what is one disadvantage of a monarchy? 5. what rights do citizen's have in a dictatorship? 6. what countries practice dictatorship? 7. what is one advantage of dictatorship? 8. what is one disadvantage of dictatorship?