Why Are There Clouds?

What natural process helps the atmosphere form clouds without human intervention?

• Condensation of water vapor

• Evaporation of water by solar energy

• Use of hot air balloons

• Artificial water dispersal

Why is humid air more buoyant than dry air?

• Humid air is denser than dry air

• Water vapor is heavier than nitrogen and oxygen

• Water vapor is lighter than nitrogen and oxygen

• Humid air contains more oxygen

What happens to water vapor as it rises and cools in the atmosphere?

• It turns into ice crystals

• It becomes heavier and falls

• It condenses into liquid droplets

• It evaporates further

What is the result of the energy released during the condensation of water vapor?

• It reduces the cloud's buoyancy

• It fuels the updraft and strengthens the cloud

• It causes the cloud to dissipate

• It cools the surrounding air

What can large amounts of released energy from condensation lead to?

• Formation of small clouds

• Calm weather conditions

• Decrease in atmospheric pressure

• Stratosphere-high clouds with storms