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

Question

Quizplus · Accepted Answer

Interstellar dust is mostly composed of microscopic particles made of carbon and silicon. These particles are thought to be the building blocks of planets and other celestial bodies. Other common elements found in interstellar dust include oxygen, nitrogen, and iron, but these are typically found in much smaller quantities than carbon and silicon.

Interstellar Dust Consists Mostly of