Agave nectar (sometimes called agave syrup) is most often produced from the Blue Agaves that thrive in the volcanic soils of Southern Mexico. Agaves are large, spikey plants that resemble cactus or yuccas in both form and habitat, but they are actually succulents similar to the familiar Aloe Vera.
Quick Answer. The instruments that measure water vapor content in the air are called a hygrometer and psychrometer. Water vapor is water suspended in the atmosphere in the form of an invisible gas. Humidity is the measure of water vapor content of the air. Continue Reading
Humidity describes the amount of water vapor in the air, and the more water vapor that is present, the more humid it is. Most weather reports don't tell you the humidity, though, because the relative humidity is more relevant. This is the amount of water vapor in the air relative to what the air can hold. This is just like figuring out how much water is in a cup relative to the total amount of water that cup can hold.