Interstellar dust consists mostly of
A) ozone "smog."
B) microscopic particles of carbon and silicon.
C) hydrogen and helium atoms.
D) tiny grains of water ice.
E) the same tiny particles found in household dust.
Answer: B
Interstellar dust consists mostly of
A) ozone "smog."
B) microscopic particles of carbon and silicon.
C) hydrogen and helium atoms.
D) tiny grains of water ice.
E) the same tiny particles found in household dust.
Answer: B