11: Which of the following is the correct order of increasing size of the grains of soil particles?
(A) Clay
(B) Silt
(C) Sand
(D) Gravel
----------------------------------
(a) A, B, C, D
(b) D, C, A, B
(c) B, C, A, D
(d) C, D, B, A
12: Which one of the following areas of India produces largest amount of cotton ?
(a) North-western India and Gangetic West Bengal
(b) North-western and Western India
(c) Western and Southern India
(d) Plains of Northern India
13: Volcanic eruptions do not occur in the
(a) Baltic Sea
(b) Black Sea
(c) Caribbean Sea
(d) Caspian Sea
14: Vidhushaka, a common character in Sanskrit drama, is invariably a
(a) Brahmana
(b) Kshatriya
(c) Vaisya
(d) Shudra
15: Two important characteristics of a hypothesis are that it should be testable and that it should be stated in a manner that it can be refuted. Which one of the following hypotheses, fulfils these characteristics ?
(a) Intelligent persons have good memory
(b) Some birds are animals
(c) Some businessmen are dishonest
(d) All men are mortal