Atmospheric Water Vapour and its Forms Quiz

What is the term for the actual amount of water vapor present in the atmosphere?

What is the term for the percentage of moisture present in the atmosphere as compared to its full capacity at a given temperature?

From where is the moisture in the atmosphere derived?

What does the ability of air to hold water vapor depend on?

In what forms is water present in the atmosphere?

What is the term used to express the weight of water vapor per unit volume of air?

What is the temperature at which the water starts evaporating referred to?

What is the term for the transformation of water vapor into water?

What is the term used for condensation directly into solid form?

What causes evaporation of water?

When does condensation take place?

What causes condensation around very small particles termed as hygroscopic condensation nuclei?

What causes increase in water absorption and retention capacity of a given parcel of air?

What is influenced by the volume of air, temperature, pressure, and humidity?

What is the term used for condensation taking place when the temperature is close to the dew point?

Atmospheric Moisture

The actual amount of water vapor present in the atmosphere is referred to as absolute humidity.

Atmospheric Capacity

The percentage of moisture present in the atmosphere compared to its full capacity at a given temperature is called relative humidity.

Sources of Atmospheric Moisture

Moisture in the atmosphere is derived from various sources, including evaporation from oceans, lakes, and rivers, as well as transpiration from plants.

Factors Affecting Air's Water-Holding Capacity

The ability of air to hold water vapor depends on its temperature.

Forms of Water in the Atmosphere

Water is present in the atmosphere in three forms: water vapor, cloud droplets, and ice crystals.

Measuring Atmospheric Moisture

The weight of water vapor per unit volume of air is expressed as absolute humidity.

Evaporation Temperature

The temperature at which water starts evaporating is referred to as the evaporation point.

Phase Transitions

The transformation of water vapor into water is called condensation.
The transformation of water vapor directly into ice is called deposition.
The term for condensation directly into solid form is deposition.

Evaporation and Condensation

Evaporation of water is caused by an increase in temperature and a decrease in humidity.
Condensation takes place when the air is cooled to its dew point.
Condensation around very small particles, known as hygroscopic condensation nuclei, is caused by the presence of these particles.

Factors Affecting Air's Water Absorption Capacity

An increase in water absorption and retention capacity of a given parcel of air is caused by an increase in temperature and humidity.

Influencing Factors of Atmospheric Conditions

The volume of air, temperature, pressure, and humidity influence the atmospheric conditions.

Test your knowledge about the presence of water vapour in the atmosphere, its role in weather phenomena, and the three forms in which water exists in the atmosphere. Explore the exchange of water between the atmosphere, oceans, and continents.