Question

The compression of matter due to gravitational attraction increased as the protoplanets formed. What was a result of this compression within each protoplanet?

A. initiation of nuclear fusion

B. increase in noble gas destabilization

C. increase in thermal energy

D. initiation of photosynthesis reactions

Answer 1

Scientists believe that the solar system was formed when a cloud of gas and dust in space was disturbed, maybe by the supernova of a nearby star. Shock waves from the explosion compressed the cloud of gas and dust. Compression made the cloud collapse, as gravity pulled the gas and dust together, forming a solar nebula.