746: The term "sixth mass extinction/sixth extinction" is often mentioned in the news in the context of the discussion of
(a) Widespread monoculture practices in agriculture and large-scale commercial farming with indiscriminate use of chemicals in many parts of the world that may result in the loss of good native ecosystems.
(b) Fears of a possible collision of a meteorite with the Earth in the near future in the manner it happened 65 million years ago that caused the mass extinction of many species including those of dinosaurs. .
(c) Large scale cultivation of genetically modified crops in many parts of the world and promoting their cultivation in other parts of the world which may cause the disappearance of good native crop plants and the loss of food biodiversity.
(d) Mankind's over-exploitation/misuse of natural resources, fragmentation/loss of natural habitats, destruction of ecosystems, pollution and global climate change.
747: Amit has five friends : 3 girls and 2 boys. Amit's wife also has 5 friends : 3 boys and 2 girls. In how many maximum number of different ways can they invite 2 boys and 2 girls such that two of them are Amit's friends and two are his wife's ?
(A) 46
(B) 38
(C) 58
(D) 24
748: Which of the following is/are among the functions of the Election Commission of India ?
I. Conduct of election for the posts of the Speaker and the Deputy Speaker, Lok Sabha and the Deputy Chairman, Rajya Sabha.
II. Conduct of election to the Corporations and Municipalities.
III. Deciding on all doubts and disputes arising out of the elections.
Select the correct answer from the codes given below.
Codes :
(a) I and II
(b) I and III
(c) II and III
(d) None of these
749: In the context of the Indian freedom struggle, 16th October 1905 is well known for which one of the following reasons?
(a) The formal proclamation of Swadeshi Movement was made in Calcutta town hall
(b) Partition of Bengal took effect
(c) Dadabhai Naoroji declared that the goal of Indian National Congress was Swaraj
(d) Lokmanya Tilak started Swadeshi Movement in Poona
750: In typhoid which of the following drugs is administered?
(a) Chloromycetin
(b) Penicillin
(c) Sulphonamide
(d) Tetracycline