Water is the most naturally abundant and widely used extinguishing substance. It extinguishes fire by cooling. There are three main types of water deluge systems, components of which are shown below. From left to right, they are: fine water spray systems, sprinkler systems, and water spray systems.
Vitamin D, a steroid hormone that influences virtually every cell in your body and has been positively linked to health conditions ranging from cancer to heart disease, may significantly boost fertility in both men and women.
Seven Essential Vitamins for Women. There are several essential vitamins for women, which help maintain a healthy mind and a fit body. The required amount of intake of these vitamins varies according to your stage of life. For instance, if you are pregnant, you need more folic acid. If you are in your menopausal years, you need more of the bone-strengthening vitamin D.