A function of the testes is to: make estrogen, produce sperm, deliver sperm to the outside of the body, add fluid to sperm produce sperm When a sperm joins with an egg, it is called: fertilization, premenstrual syndrome, ejaculation, ovulation
A hygrometer is weather instrument used to measure the amount of humidity in the atmosphere. There are two main types of hygrometers â a dry and wet bulb psychrometer and a mechanical hygrometer. Humidity is the amount of water vapor in the atmosphere caused by condensation and evaporation.
A hygrometer just gives you more information about your home environment, much like a thermometer does. By the way, some hygrometers come with thermometers and display both the relative humidity and the temperature in an area. Many people find that particularly convenient.