General Knowledge Questions And Answers :: General Science: part18



General Knowledge : General Science QUESTIONS AND ANSWERS :: part18 : 86 to 90

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :

86.Sound Waves produce echo due to

Refraction
Diffraction
Reflection
Absorption

87.Actinides are the elements with atomic numbers from :

36 to 43
89 to 103
97 to 114
101 to 115

88.Which of the following gases is not known as green house gas ?

Carbon dioxide
Methane
Nirtous oxide
Hydrogen

89.Ornithology is the study of

Flow of electric
Flow of heat
Aufbau Principle
Photoelectric effect

90.Acetyl slicylic acid is commonly used as :

a pain killer
a sedative
a fertiliser
tear gas

More General Science QUESTIONS AND ANSWERS available in next pages

    Health is the greatest gift, contentment is the greatest wealth -Buddha
Failure defeats losers, failure inspires winners.-Robert T. Kiyosaki