The approximate intensity level of the sound which can cause damage to the ear drum is...? Mcqs

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The approximate intensity level of the sound which can cause damage to the ear drum is...?

(A) 20 dB
(B) 60 dB

(C) 100 dB
(D) 160 dB

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Which one of the following is a non-luminous object(s)...?

(A) Sun
(B) Stars

(C) Moon
(D) Fireflies

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Burning of wood is a ______ change....?

(A) Chemical
(B) Physical

(C) Temporary
(D) Both A and B

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Select the odd one of the followings...?

(A) Active transport
(B) Diffusion

(C) Facilitated diffusion
(D) Osmosis

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Which is not a cause of water pollution...?

(A) Gases from household materials
(B) Sewage water from homes

(C) Untreated water from industries
(D) Water runoff from agriculture

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A clouding that develops in the lens of the eye or in its envelope obstructing the passage of light is known as________...?

(A) Glaucoma
(B) Hemophilia

(C) Cataract
(D) Diphtheria

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Which planets are called ice giants...?

(A) Outer planets (Uranus and Neptune)
(B) Outer planets (Jupiter and Neptune)

(C) Outer planets (Jupiter and Saturn)
(D) Inner planets (Mercury and Earth)

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The moon’s surface temperature varies from about ________ to _________ ...?

(A) – 173 degrees Celsius at night to 127 degrees Celsius during the day
(B) – 172 degrees Celsius at night to 172 degrees Celsius during the day

(C) Remains constant during day and night
(D) – 170 degrees Celsius at night to 107 degrees Celsius during the day

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Which scientist is known as modern father of Astronomy ...?

(A) Einstein
(B) Newton

(C) Copernicus
(D) Archimedes

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Lactometer is used for__________...?

(A) Ship
(B) Milk

(C) Honey
(D) None

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