Question no 1 : obesity is a another word for being overweight.
Qn2: Food choices/ Lack of physical activity/ Spend a lot of time on sedenatary persuit/
Overweight parents/ Genetics
Qn3:no its international problem
Qn4:From 1985 to 1995 the number of overweight 7–15 year olds almost doubled. The numbers of obese children has more than tripled. At the current rate, it is predicted that 65 per cent of young Australians will be overweight or obese by 2020.
Qn5: Changing society has contributed to obesity
Qn6: yes it does
Qn7: Type 2 diabetes – while this condition is most commonly seen in adults, it is now also being diagnosed in children 

Eating disorders such as bulimia or binge eating

Orthopaedic disorders – problems with foot structure

Liver problems, including fatty liver

Respiratory disorders, such as blocked airways and restrictions in the chest wall, which cause breathlessness during exercise

Sleep apnoea – this is a condition that causes difficulty breathing when sleeping. It also causes snoring, waking often and poor sleep. It makes people feel tired and contributes to poor concentration during the day

Cardiomyopathy – a problem with the heart muscle, caused when extra effort is needed to pump blood.

these diseas and problems include children
Qn8: Obesity in childhood leads to obesity in adulthood

Social problems for obese children and adolescents

EFS