941Every Day ScienceMedium
On which disease did Robert Koch work?
ACholera
MCQs
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Correct answer
C. Tuberculosis
Explanation
Tuberculosis is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Nitrogen gas
Explanation
Potato chips packets are filled with air but with NITROGEN GAS.This is done to prevent Oxidising which ultimately results in stale .Oxygen is a very reactive gas and it’s molecules react with air, moisture and result in staling of food .Since nitrogen is less reactive than oxygen hence the packets are filled with NITROGEN gas .
Correct answer
B. 82
Explanation
Saturn has 82 moons. Fifty-three moons are confirmed and named and another 29 moons are awaiting confirmation of discovery and official naming.
Correct answer
B. Abducens
Explanation
Abducens is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. 63% tin and 37% lead
Explanation
Fuse-wire Is made up of tin-lead alloy (63% tin + 37% lead). It should have low melting point and high resistivity. It is used in series as a safety device in an electric circuit and is designed so as to melt and thereby open the circuit if the current exceeds a predetermined value due to some fault.
Correct answer
D. Convex
Explanation
Convex is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
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C. Indian Ocean
Explanation
The Indian Ocean has the warmest temperatures of the world’s oceans. Ocean water temperature is important to understand, as it affects global climate and marine ecosystems.
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D. Atmospheric pressure
Explanation
Atmospheric pressure is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. both need the same velocity
Explanation
both need the same velocity is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. Corona
Explanation
Corona – The corona is the outermost layer of the Sun, starting at about 1300 miles (2100 km) above the solar surface (the photosphere).