If the air temperature is low enough to keep the precipitation frozen, it falls as lake-effect snow. For lake-effect rain or snow to form, the air moving across the lake must be significantly cooler than the surface air (which is likely to be near the temperature of the water surface).
Major Health Problems Associated with Childhood ObesityCauses of obesity in children: Physical Activity: Lack of physical activity and a sedentary lifestyle are major contributors to obesity. Low physical activity in children may also be associated with a higher risk of developing cardiovascular disease.
Eight factors for childhood obesity. Scientists have identified eight factors in early life - including watching a lot of television - that put children at a greater risk of obesity, a study revealed today. Experts have long believed that aspects of a child's early development influence their weight in later life. Now researchers writing in the British Medical Journal have highlighted eight key factors they believe increase the risk of obesity among the UK's children.