std 9 science ch 5 svadhyay

Incidence of STDs is very among individuals of age group

There are 5 candidates for mathematics , 7 for science and 3 for arts scholarship . Find the number of ways of give one scholarship either for mathematics or for science or for arts.

Science magazine and science journals are

Assertion: Prevention or early dectection and cure of STDs are given prime consideration under the RCH programmes Reason: STDs are a major threat to a healthy society.