2161: The beginning of urbanisation of the Ganges from the 6th century was mainly attributed to:
(a) Fertility of soil
(b) Trade improvement
(c) Population growth
(d) None of the above
2162: Which one of the following groups of animals belongs to the category of endangered species?
(a) Great Indian Bustard, Musk Deer, Red Panda and Asiatic Wild Ass
(b) Kashmir Stag, Cheetal, Blue Bull and Great Indian Bustard
(c) Snow Leopard, Swamp Deer, Rhesus Monkey and Saras (Crane)
(d) Lion-tailed Macaque, Blue Bull, Hanuman Langur and Cheetal
2163: Three students are picked at random from a school having a total of 1000 students. The probability that these three students will have identical data and month of their birth is:
(a) 3/1000
(b) 3/365
(c) 1/(365)2
(d) 1/(365)2
2164: Assertion (A):
Italy, Switzerland, Sweden and Norway have abundant power resources.
Reason (R):
They have the largest coal deposits in Europe. Of these statements
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
2165: Which one of the following is another name of RDX ?
(a) Selenium
(b) Cyclonite
(c) Cyanohydrin
(d) Cyclohexane