This document contains 15 multiple choice quiz questions about general knowledge topics including the causes of variations in day and night lengths, the inventor of the World Wide Web, definitions of economic goods, forces that act on coins pulled over a paper strip, uses of alum in water purification, characteristics of rigid and elastic bodies, types of parallel forces, purposes of banking roads, processes that occur in clothes dryers, global pressure zones, and a UN declaration from 1993.

1. General Knowledge [Questions & Answers] |Part 89|
Multiple choice quiz questions and answers
1 Variations in the length of day time and night time from season to season are due to
__________.
2 The World Wide Web was invented by __________.
3 Economic goods are __________.
4 If we place some coins over paper strip and pull it with a jerk, then coins don't falloff
because of __________.
5 For purifying drinking water alum is used __________.
6 Body is said to be rigid if distance between pairs if particles doesn't change by applying
__________.
7 The birthplace of the World Wide Web was __________.
8 ESCAP stands for __________.
9 Forces that are parallel to each other with same direction are __________.
10 Banking of road prevents __________.
11 Body is said to be elastic if it __________.
12 Motion of riders in Ferris wheel is __________.
13 In dryer, water is pushed out of wet clothes due to __________.
14 The latitudinal differences in pressure delineate a number of major pressure zones, which
correspond with __________.
15 The United Nations declared 1993 as a year of the __________.