Volatile materials occur as _______,while refractory materials exist as ________.
A) gases; solids
B) moons; planets
C) red giant stars; supernovae
D) liquids; gases

Question

Quizplus · Accepted Answer

Volatile materials are substances that have a low boiling point and easily vaporize, hence they occur as gases. Refractory materials, on the other hand, have a high melting point and are resistant to heat, hence they exist as solids.

Volatile Materials Occur as _______,While Refractory Materials Exist as ________

Volatile Materials Occur as _,While Refractory Materials Exist as __