Water in the Atmosphere

What is the process in which a solid changes directly into a gas?

• Evaporation

• Sublimation

• Condensation

• Precipitation

What is the process in which a liquid turns into a gas?

• Evaporation

• Sublimation

• Condensation

• Precipitation

What is the process in which a gas turns into a liquid?

• Evaporation

• Sublimation

• Condensation

• Precipitation

The mass of water vapor in a given volume of air

• Dew point

• Absolute humidity

• Relative humidity

• Precipitation

Point at which rate of condensation equals rate of evaporation

• Dew point

• Absolute humidity

• Relative humidity

• Precipitation

The ratio of actual water vapor content of the air to the amount of water vapor needed to reach saturation

• Dew point

• Absolute humidity

• Relative humidity

• Precipitation

What causes dew to form on grass?

• Temperature of nearly saturated air rises to just above the dew point

• The grass sheds excess water

• Mist

• Temperature of nearly saturated air cools to just below the dew point

Which of these is NOT necessary for cloud formation?

• Cooling air

• Particle of salt/dust/ice in the air

• Warming air

• Air saturated with water

What is adiabatic cooling?

• Air condenses as it rises

• Temperature of air increases as it rises and expands

• Air condenses as it falls

• Temperature of air decreases as it rises and expands

In adiabatic cooling, why does air rise?

• The air is cold

• The air is moving

• Heat from the ground warms the air

• Heat from the sun warms the air