Question

Planets, stars, and galaxies are composed of different forms of matter. Which material makes up the planets in Earth's solar system?
A.
heavy metals created in the big bang

B.
debris from previous stars that have exploded

C.
material that shot out of the Sun about 10 billion years ago

D.
material captured from a passing galaxy about 10 billion years ago

Answer 1

B. debris from previous stars that have exploded