686: Consider the following:-
1. Carbon dioxide
2. Oxides of Nitrogen
3. Oxides of Sulphur
Which of the above is/are the emission/emissions from coal combustion at thermal power plants?
(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
687: What is Bisphenol A (BPA) ?
(a) A medical test for detecting cancer
(b) A test for testing the use of drugs to improve performance by athletes
(c) A chemical used for the development of food-packaging materials
(d) A special type of alloy steel
688: Which one of the following best describes the term "Merchant Discount Rate" sometimes seen in news ?
(a) The incentive given by a bank to a merchant for accepting payments through debit cards pertaining to that bank.
( b) The amount paid back by banks to their customers when they use debit cards for financial transactions for purchasing goods or services.
(c) The charge to a merchant by a bank for accepting payments from his customers through the bank's debit cards.
(d) The incentive given by the Government, to merchants for promoting digital payments by their customers through Point of Sale (PoS) machines and debit cards.
689: Why could British only succeed in trade and commerce in India?
(a) Because of government backing
(b) Quality of merchandise
(c) Naval superiority
(d) All of the above
690: Examine the following statements :
I. All children are inquisitive.
II. Some children are inquisitive.
III. No children are inquisitive.
IV. Some children are not inquisitive.
Among these statements, the two statements which cannot both be true simultaneously but can both be false would be
(a) I and III
(b) I and IV
(c) II and III
(d) III and IV