Question

1. condensation nuclei are best described as: *

a. small ice crystals in the upper atmosphere
b. tiny particles that water vapor clings to
c. pollutants that block sunlight
d. warm air pockets that rise quickly

1. what happens to air as it rises in the atmosphere? *

a. it warms and becomes heavier
b. it cools and may form clouds
c. it sinks and dries out
d. it speeds up and becomes windy

Explanation:

Condensation nuclei are tiny particles that water vapor clings to. As air rises in the atmosphere, it cools. When air cools, the water vapor in it can condense onto these nuclei. For question 2, condensation nuclei are best described as tiny particles that water vapor clings to. For question 3, as air rises in the atmosphere, it cools and may form clouds.

Answer:

1. B. Tiny particles that water vapor clings to
2. B. It cools and may form clouds