Exam 4: Atmospheric Humidity

Evaporation and transpiration from continental areas amount to only about ____ percent of the nearly 1.5 billion gallons of water vapor that annually evaporate into the atmosphere.

The time of day when the relative humidity reaches a maximum value is usually ____.

The air's moisture content can be described by measuring the pressure exerted by the water vapor in the air.

The relationship between the mass of water vapor in an air parcel and the mass of all air in the same parcel (including vapor)is called ____.

When the temperature is 98 degrees Fahrenheit and the relative humidity is 55 percent, how would you classify the possible heat-related risk?

The ____ the temperature of a gas, the faster its molecules move.

A high water vapor pressure indicates a(n)____.

In the gas state, water molecules are ____ in the liquid state.

If the air temperature increased, with no addition or removal of water vapor, the actual vapor pressure would ____.

What will occur if a glass of water at a stable temperature is surrounded by saturated air?

In order to reduce evaporation and conserve water, do you think it would be better to water a lawn in the early morning or early evening?

Explain why the dew point temperature provides a better indication of the actual amount of water vapor in the air than relative humidity.

Saturation vapor pressure depends primarily on ____.

Which of the following always decreases in a rising parcel of air?

Which of the following BEST describes the wet-bulb temperature?

Plants give up moisture by a process called perspiration.

The ice-to-vapor phase transition is known as ____.

If all of Earth's water vapor were to suddenly condense and fall as rain, it would be enough to cover the entire globe with ____ of water.

The partial pressure of water vapor is called the ____.

Suppose the dew point of not outside air is the same as the dew point of the air indoors. If the door is opened and hot air replaces some of the cool air, then the new relative humidity indoors would be ____.