Celina Cruz from Morristown asks: "What causes humidity?"
Humidity is created by water vapor. By definition, it's a measure of the amount of water vapor in the air.
Keep in mind that's not the total amount of vapor and liquid.
Humidity happens during the natural phenomenon known as the water cycle. Under the sun's heat, water from the various water bodies, like likes, rivers, and oceans, evaporates and becomes water vapor in the atmosphere.
The level of humidity increases as the amount of water vapor in the atmosphere builds up.
Rain and humidity can be a little tricky. Simply because there is 100 percent humidity does not mean that it is raining.
Here's something that's really strange: we can have above 100 percent humidity.