People of which age group are move vulnerable to incidence of infection of STDs? Suggest three ways of preventing STDs.

What are Sexually Transmitted Diseases ? Give one example of STD. Suggest any two measures to prevent STDs.

STDs are a threat to reproductive health. Describe any two such diseases and suggest preventive measures.

Aditya particiated in a group discussion in his school on "The ill-effects of Tobacco on Human Health". In the evening he goes with his family for dinner and insists on sitting in the "Non-Smoking Area" to which his father (who is a heavy smoker) objects. Suggest any three effective propaganda campaigns for anti-tobacco awareness.

A group of 360 people were asked to vote for their favorite season from the three seasons rainy, winter and summer. (i) Which season got the most votes? (ii) Find the central angle for each sector. (iii) Draw a pie chart to show this information.