How long has the Sun taken to use up half of its hydrogen fuel?

اس کے ہائیڈروجن ایندھن کا آدھا حصہ استعمال کرنے میں سورج کتنا عرصہ لے گیا ہے؟

4.6 billion years

2.3 billion years

6.9 billion years

None of these

The Sun has already used up roughly half of its hydrogen fuel in approximately 4.6 billion years.

It is currently in the stable phase of its life cycle, converting hydrogen to helium through nuclear fusion.

In about 5 billion years, the Sun will exhaust its hydrogen fuel and begin its transformation into a red giant.