Answer: B) Jay Cooke & Company Explanation: Jay Cooke & Company, a major component of the United States banking establishment, found itself unable to market several million dollars in Northern Pacific Railway bonds in september 1873. Cooke's firm, like many others, had invested heavily in the railroads.   Hence, the bankruptcy of Jay Cooke & company initiated the Panic of 1873.

Answer: B) Literature Explanation: Lost Generation definition, the generation of men and women who came of age during or immediately following World War I. "Literature" was the one field among the following choices given in the question that was associated with the "Lost Generation".

Answer: B) 48 Explanation: MAC - Media Access Control, address is a globally unique identifier assigned to network devices, and therefore it is often referred to as hardware or physical address.   MAC addresses are 6-byte (48-bits) in length, and are written in MM:MM:MM:SS:SS:SS format.

IG stands for Inspector General of Police. DIG(Deputy Inspector General ofPolice) is a One-star rank in the police service who works under IG.

Answer: C) Football Explanation: Merdeka cup is associated with Football in Indonesia.

Answer: D) Both B & C Explanation: Groundwater is all the water that has penetrated the earth's surface and is found in one of two soil layers. The one nearest the surface is the "zone of aeration", where gaps between soil are filled with both air and water. Below this layer is the "zone of saturation", where the gaps are filled with water.

Answer: D) Speech : Dumb Explanation: Here the two pair of words related in such a way that, a blind can't see the light. Similarly, a dumb cannot speech.   Hence, Light : Blind :: Speech : Dumb.

Fermentation is the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat.   The two most common types of fermentation are (1) alcoholic fermentation (and)  (2) lactic acid fermentation.   (1) Alcoholic fermentation : the type of fermentation in which ethyl alcohol is the main end product .This is very common in yeast (unicellular fungus) and also seen in some bacteria. Yeast cells release enzymes called zymase complex which bring about the fermentation. The reactions are similar to anaerobic respiration.   (2) Lactic acid fermentation : The type of fermentation in which lactic acid is the end product. It is carried out by some bacteria (e.g. lactic acid bacteria), and also by animals (muscle glycolysis in animals, under oxygen deficiency, results in the formation of lactic acid this is whay we experience in muscle cramps, or "Charley horse").