Meningitis is a disease caused by the inflammation of the protective membranes covering the brain and the spinal cord. While most people with meningitis recover, it can cause serious complications, such as brain damage, hearing loss or learning disabilities. A vaccination is the most effective way to protect yourself against certain types of meningitis.
Primary & Secondary pollutant. Definition: A primary pollutant is an air pollutant emitted directly from a source. A secondary pollutant is not directly emitted as such, but forms when other pollutants (primary pollutants) react in the atmosphere.
Cold air intake. Cold air intakes are a type of ram air intake systems that work by drawing in cool air from outside and into the vehicleâs engine. This type of intake often has minimal bends and has a long duct with access to cool air.With cooler air coursing through the engine, combustion requires less heat and fuel.his is why replacing the air intake system is often a no-brainer for many petrolheads. There are three main kinds of air intakes: cold, ram, and the stock air intake. All vehicles come with the manufacturerâs stock air intake.