Question

Which is one physical property that all stars have? They are made of gases. They shine very brightly. They have a triangle shape. They contain iron in their cores.

Answer 1

A

Explanation:

They are made of gases

Answer 2

They are made up of gases.

Explanation:

Just had the question not too long ago. "The composition of stars can vary. Most stars, however, are made of mostly hydrogen and helium (73% hydrogen, 25% helium, and 2% other elements)." - from my notes