Please help, i need it by the end of today

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.

Which accounts for an increase in the temperature of a gas that is kept a constant volume

Which governments provide garbage collection services to homes and businesses