3156: Which one of the following genetic diseases is sex-linked ?
(a) Royal haemophilia
(b) Tay-Sachs disease
(c) Cystic fibrosis
(d) Hypertension
3157: What is Rio+20 Conference, often mentioned in the news?
(a) It is the United Nations Conference on Sustainable Development
(b) It is a Ministerial Meeting of the World Trade Organization
(c) It is a Conference of the Inter-governmental Panel on Climate Change
(d) It is a Conference of the Member Countries of the Convention on Biological Diversity
3158: Mulching the soil is a process whereby:
(a) Big pieces of soil are broken down into smaller pieces
(b) The field is irrigated at regular intervals
(c) Transplanting of seedlings take place
(d) Loose material, dung, etc. are laid on the ground to prevent excessive evaporation or erosion of the soil
3159: The sum of which of the following constitutes Broad Money in India ?
I. Currency with the Public
II. Demand deposits with banks
III. Time deposits with banks
IV. Other deposits with RBI
Choose the correct answer using the codes given below :
(a) I and II
(b) I, II and III
(c) I, II, III and IV
(d) I, II and IV
3160: The dimensions of a rectangle are 51 m and 49 m respectively while side of a square is 50 m. Which of the following statements is correct?
(a) Diagonals of the square and the rectangle are equal
(b) Diagonals of both the geometrical figures intersect at right angles
(c) The perimeters of both the geometrical figures are equal
(d) Both the geometrical figures are of the same area