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.
Some studies point to zinc as the magic fertility bullet. This type of research claims that the consumption of at least 15 mg of zinc a day can increase semen and testosterone production in men and ovulation and fertility in women, report the editors at Fertility.com.