Astronomy : Main sequence stars and nucleosynthesis

Main sequence stars are _____

• average stars

• supergiant stars

• dwarf stars

• Invisible stars

Protostars are ______ than stars

• older

• younger

• more stable

Convection in giant stars happens ______

• next to the surface

• in the atmosphere

• next to the core

• rarely

A main sequence star becomes a giant when it runs out of hydrogen fuel

• True

• False

• Maybe

All elements heavier than hydrogen could only be produced in cataclysmic supernova events

• True

• False

• Maybe

The heaviest element that could be produced by nuclear fusion in stars is ______

• Hydrogen

• Carbon

• Iron

• Magnesium