Question

on a cool morning, uyens breath can form a cloud when she breathes out. which changes of state are most responsible for uyen seeing her breath in this way?
○ melting
○ condensation
○ deposition
○ sublimation

Explanation:

When Uyen breathes out, warm, moist air (with water vapor, a gas) is released. In the cool morning air, the water vapor cools down and changes from gas to liquid (tiny water droplets, forming the visible "cloud"). Melting is solid to liquid, deposition is gas to solid, and sublimation is solid to gas—none match. Condensation (gas to liquid) explains this.

Answer:

B. condensation