Question

Who is telling lies?

1. Light year is used to measures time.
2. End stage of a star depends on its initial mass.
3. A star ends its life as a neutron star when the pressure of its electrons balances its gravity.
4. Only light can emit from the black hole.
5. The sun will pass through the supergiant stage during its evolution.
6. The Sun will end its life as a white dwarf. 

Answer 1

1. The statement is a lie as light year is used to measure distance.
2. The statement is true as end stage of a star depends on its initial mass.
3. It’s a lie because a star ends its life as a neutron star when the pressure of its neutrons balances gravity.
4. The statement is a lie because nothing can be emitted from black hole.
5. The statement is a lie as the sun will not become a supergiant; instead, it will go through the red giant stage in its evolution due to its relatively low mass. 
6. It is true as the Sun will end its life as a white dwarf.