The atmospheric greenhouse effect is produced mainly by the __________________...? Mcqs

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The atmospheric greenhouse effect is produced mainly by the __________________...?

(A) Absorption and re-emission of visible light by the atmosphere
(B) Absorption and re-emission of ultraviolet radiation by the atmosphere

(C) Absorption and re-emission of infrared radiation by the atmosphere
(D) Absorption and re-emission of visible light by clouds

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Mobile Phone Convert sound into ______...?

(A) Sound wave
(B) U/V waves

(C) Microwaves
(D) Radio waves

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In an acidic medium, methyl orange is orange (red) and in a basic medium, it is...?

(A) Red
(B) Yellow

(C) Pink
(D) Blue

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The diarrhea and typhoid are caused by which infection...?

(A) Fungal
(B) Viral

(C) Bacterial
(D) None

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Which is not a type of environment...?

(A) Garden
(B) Pond

(C) Storeroom
(D) None

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Which one of the following sets of color combinations is added in color vision in TV’...?

(A) Red, green and blue
(B) Orange, back and violet

(C) White. red and yellow
(D) Yellow, green and blue

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Silver fish is the name of__________...?

(A) Insect
(B) Fish

(C) Bird
(D) Mammal

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The boiling point of water on a centigrade scale is...?

(A) 80°C
(B) 90°C

(C) 100°C
(D) 10°C

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In constructive reaction _____ molecules are formed....?

(A) Small
(B) Medium

(C) Equal
(D) Large

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Approximate age of milky-way is ________...?

(A) 16.5 billion years
(B) 15.5 billion years

(C) 13.5 billion years
(D) 14.5 billion years

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