26.The average annual increase in the number of urbanites in developing countries, from 1950 to 2000 A.D. was close to

27.Interaction inside the classroom should generate

28.The author in this passage has tried to focus on

29.Choose the appropriate alternative given in the codes to replace the question mark. Examiner – Examinee, Pleader – Client, Preceptor -?

30.Which of the following sampling methods is based on probability?