3151: In India people migrate from the countryside to the towns while in the U.S.A. it is just the other way. What is the reason for this?
(a) In U.S.A. people like the countryside more than the cities
(b) Use of urban land for purposes other than that of residence
(c) Lack of security of life and property in cities
(d) Lack of employment opportunities in cities
3152: How many minimum number of colours will be required to paint all the sides of a cube without the adjacent sides having the same colours?
(a) 3
(b) 4
(c) 5
(d) 6
3153: Gopal, Harsh, Inder, Jai and Krishnan have Ahmedabad, Bhopal, Cuttack, Delhi and Ernakulam as their hometowns (Not necessarily in that order). They are studying in Engineering, Medical, Commerce, Economics and History Colleges (Not necessarily in that order). None of the five boys is studying in his hometown, but each of them studies in one of the cities given above.
Further it is given that:
(i) Gopal's hometown is Ernakulam.
(ii) Harsh is not stuyding in Ahmedabad or Bhopal.
(iii) Economics College is in Bhopal.
(iv) Inder's hometown is Cuttack.
(v) Krishnan is studying in Delhi.
(vi) Jai is studying in Ernakulam and the History College is in his hometown Ahemdabad.
(vii) Engineering College is situated in Ernakulam
Who studies in Bhopal?
(A) Gopal or Inder
(B) Inder or Harsh
(C) Harsh
(D) Gopal
3154: Microbial fuel cells are considered a source of sustainable energy, Why ?
1. They use living organisms as catalysts to generate electricity from certain substrates.
2. They use a variety of inorganic materials as substrates.
3. They can be installed in waste water treatment plants to cleanse water and produce electricity.
Which of the Statements given above is/are correct?
(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
3155: Who among the following founded Ramakrishna Mission?
(a) Swami Dayanand Saraswati
(b) Raja Rammohan Roy
(c) Swami Vivekananda
(d) None of these