Which of the following can be used to reduce friction between moving parts of machines...? Mcqs

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Which of the following can be used to reduce friction between moving parts of machines...?

(A) Sand
(B) Grease

(C) Gears
(D) Screws

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Study of Liver and its diseases is called...?

(A) Mycology
(B) Angiology

(C) Hepatology
(D) Otology

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Part of earth where life exists is called ______...?

(A) Lithosphere
(B) Atmosphere

(C) Biosphere
(D) Hydrosphere

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The distance between the earth and the sun is smallest in the month of _________...?

(A) February
(B) January

(C) December
(D) April

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The unit to measure the quantity of Ozone in atmosphere is...?

(A) Dobson
(B) Dalton

(C) Cuolomb
(D) none

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Galileo was an Italian astronomer who _________...?

(A) Developed the telescope
(B) Discovered four satellites of Jupiter

(C) Discovered that the movement of pendulum produces a regular time measurement
(D) All of the above

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Process where nitrogenous compound of living organism convert into nitrates is called...?

(A) Ammonification
(B) Nitrification

(C) Denitrification
(D) Deamination

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Which One of the Following Is Not a Greenhouse Gas...?

(A) Methane
(B) Hydrogen

(C) Nitrous oxide
(D) Ozone

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Spectroscopy is the interaction of light with ______...?

(A) Liquid
(B) Solid

(C) Gas
(D) Matter

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What theory is that the world and man are governed by order and regularity...?

(A) Progression theory
(B) Reconstructionist theory

(C) Evolution theory
(D) None of these

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