46: Water hyacinth is related to:
(a) Lemna
(b) Pistia
(c) Eichhornia
(d) None of these
47: In a question paper, there are four multiple choice questions. Each question has five choices with only one choice for its correct answer. What is the total number of ways in which a candidate will not get all the four answers correct?
(A) 19
(B) 120
(C) 1024
(D) 624
48: Which one of the following is the largest Committee of the Parliament?
(a) The Committee on Public Accounts
(b) The Committee on Estimates
(c) The Committee on Public Undertakings
(d) The Committee on Petitions
49: Deserts such as the Sahara are generally found between 20° and 30° latitudes in the western parts of the continents. This is because these regions
(a) Have off-shore winds throughout the year
(b) Have warm off-shore currents
(c) Lie in the belt of the doldrums
(d) Are very hot throughout the year
50: The Nagara, the Dravida and the Vesara are
(a) the three main racial groups of the Indian subcontinent
(b) the three main linguistic divisions into which the languages of India can be classified
(c) the three main styles of Indian temple architecture
(d) the three main musical gharanas prevalent in India