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Water vapor enters the air as water at the surface evaporates or as plants transpire water vapor from their leaves.

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What is the result when pollutants enter the air and combine with water vapor?

acid rain


What is water vapor in air?

Water vapor in the air is water in the form of a gas.


What is it called when water molecules in liquid vapor escape into the air as water?

This process is called evaporation. It occurs when water molecules gain enough energy to break free from the liquid phase and enter the surrounding air as water vapor.


When water vapor is added to the air the density of the air is?

When water vapor is added to the air, the density of the air decreases. This is because water vapor molecules are less dense than dry air molecules.


When water molecules disappear into the air is called?

Evaporation


How does temperature affect amount of vapor in the air?

The warmer the temperature, the more water vapor in the air. The colder the temperature, the less water vapor in the air.


What is the relationship between water vapor and humidity?

Water vapor is water is gas form. Humdity is the amount of water the air can hold. So, they're both water in the air.


What is the process by which molecules of liquid water escape into the air after becoming water vapor?

The process is called evaporation. It occurs when molecules of liquid water gain enough energy to break free from the surface and enter the air as water vapor. This process is driven by heat energy from the surroundings.


A measure of the amount of water vapor in the air is?

Relative humidity is a measure of the amount of water vapor in the air. It represents the ratio of the amount of water vapor present in the air to the maximum amount of water vapor the air can hold at a specific temperature, expressed as a percentage.


What is water in the air?

water vapor


Why is there a limit on the amount of water vapor the air can hold?

It takes a lot of energy to turn water into water vapor. The amount of energy that the water gains to turn into water vapor begins to be transferred into the surrounding air. If the air is willing to take on more energy the water vapor condenses quicker. This is why hot air will hold more water vapor than cold air.


Which is more dense air saturated with water vapor or air unsaturated with water vapor?

Saturated air is more dense.