A Intermittent irrigation

B Paris green

C Gambusia affinis

D Malathion

A Health education

B Water testing

C Foification of salt

D None

A Reduction in fat intake to 20-30 percent of caloric intake

B A decrease in complex carbohydrateconsumption

C Consumption of saturated fats be limited to less than 10% of total energy intake

D Reduction of cholesterol to below 100mg per 1000kcl per day

A Farmers

B Travellers

C Industrial workers

D Mine workers

A Communicability of infection

B History of disease

C Virulence of organism

D Contribution of a disease among all deaths

A Pie char

B Histogram

C Scatter diagram

D Line diagram

A Type II error

B Type I error

C Beta error

D Error of second kind

A Adequate supply of safe drinking water

B Nutrition

C Provision of free medicines

D Basic sanitation

A Interval data

B Ratio data

C Nominal data

D Ordinal data

A Represents killing power of disease

B Closely related to viruleance

C Very useful for chronic diseases

D May vary in different epidemic for same disease