scientist, discoveries & inventions MCQ section 1 Practice Questions Answers Test with Solutions & More Shortcuts
scientist, discoveries & inventions PRACTICE TEST [4 - EXERCISES]
scientist, discoveries & inventions MCQ section 1
scientist, discoveries & inventions MCQ section 2
scientist, discoveries & inventions MCQ section 3
scientist, discoveries & inventions MCQ section 4
Question : 31 [SSC CGL 2014]
The study of Drugs and their action is known as
a) Palaeontology
b) Pharmacy
c) Pharmacology
d) Palaeozoology
Answer »Answer: (c)
Pharmacology is the study of drugs. It involves examining the interactions of chemical substances with living systems, with a view to understanding the properties of drugs and their actions, including the interactions between drug molecules and drug receptors and how these interactions elicit an effect.
Question : 32 [FCI Asst Grade-II 2012]
Who invented vaccination?
a) Christian Barnard
b) James Simpson
c) Alexander Fleming
d) Edward Jenner
Answer »Answer: (d)
The smallpox vaccine was the first successful vaccine to be developed. The process of vaccination was first publicised by Edward Jenner in 1796, who acted upon his observation that milkmaids who caught the cowpox virus did not catch smallpox.
Before the introduction of a vaccine, the mortality of the severe form of smallpox—variola major—was very high. Historical records show that a method of inducing immunity was already known.
A process called inoculation, also known as insufflation or variolation was practised in India as early as 1000 BC.
Question : 33 [SSC Stenographer 2011]
Who discovered North Pole ?
a) John Cabot
b) Robert Peary
c) Tasman
d) Amundsen
Answer »Answer: (b)
Robert Edwin Peary, Sr. was an American explorer who claimed to have led the first expedition, on April 6, 1909, to reach the geographic North Pole. Peary's claim was widely credited for most of the 20th century, though it was criticized even in its own day.
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