The phenomenon which leads to destruction of manmade structure and metal of archaeological importance is ____...? Mcqs

Latest MCQs

The phenomenon which leads to destruction of manmade structure and metal of archaeological importance is ____...?

(A) Hydrogen
(B) Oxygen

(C) Acid Rain
(D) Nitrogen

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The following are the methods to purify water except...?

(A) Filtration
(B) Distillation

(C) Crystallization
(D) Chlorination

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The outer part of DNA helix made up of sugar and phosphate is called ______...?

(A) Nucleoprotein
(B) Rungs

(C) Upright
(D) Phosphoester

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Dry ice is ___________...?

(A) Methane hydrate
(B) Liquid Nitrogen

(C) Solid Carbon dioxide
(D) Frozen Water

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An objects that allow light to travel through them are called...?

(A) Transparent
(B) Translucent

(C) Opaque
(D) None

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Fine organic or inorganic particles suspended in air is called _______________...?

(A) particulate pollutant
(B) gaseous pollutant

(C) aerosol
(D) none of these

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Which gas does a Photocopier machine produce...?

(A) Ozone
(B) carbon dioxide

(C) Sulfur dioxide
(D) None of these

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In which of the following, the speed of sound is minimum...?

(A) Brick
(B) Air

(C) Lead
(D) Copper

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Which of the following is a substance...?

(A) Sea water
(B) Brass

(C) Tape water
(D) Graphite

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Which mineral is essential for building bones and teeth, muscle functioning and blood clotting...?

(A) Calcium
(B) Magnesium

(C) Iron
(D) Sodium

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