Periodontal treatment is the specialist cleaning of your teeth and gums to help control the bacteria that cause gum disease. Gum disease is caused by the germs (bacteria) which live in your mouth. The bacteria stick to your teeth, irritate the gums and make them bleed.
(Redirected from Ground effect in aircraft) In fixed-wing aircraft, ground effect is the increased lift (force) and decreased aerodynamic drag that an aircraft's wings generate when they are close to a fixed surface. When landing, ground effect can give the pilot the feeling that the aircraft is floating.
Greenhouse effect is the process in which the atmosphere. of the Earth trap some of the heat coming from the sun, making the Earth warm but due to burning fuels, cutting. trees, the concentration of heat on Earth is increased to. abnormal levels making greenhouse effect as one of the. major causes of global warming.