PRRS exists in two distinct forms, reproductive and respiratory, and infected farms may experience one or both. A variety of factors, including swine genetics, the specific PRRS virus variants in the herd, health status of the herd, ages of the animals involved, and pregnancy status, may influence the clinical signs.
8495 Karma. 1. Silicon is a metal and oxygen is a non metal hence it will form both ionic and covalent bonds, pauling principle explains the ratio in detail.Was this answer helpful?495 Karma. 1. Silicon is a metal and oxygen is a non metal hence it will form both ionic and covalent bonds, pauling principle explains the ratio in detail.
Silicon dioxide is the main ingredient of glass. Glass is made by melting silicon sand (also called quartz sand) with carbon at a high temperature (up to 4000 degrees Fahrenheit). When the glass forms, the mixture releases the carbon and oxygen as a gas (carbon monoxide).lass is made by melting silicon sand (also called quartz sand) with carbon at a high temperature (up to 4000 degrees Fahrenheit). When the glass forms, the mixture releases the carbon and oxygen as a gas (carbon monoxide).