The nearest Star to the planet earth is ________ ...? Mcqs

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The nearest Star to the planet earth is ________ ...?

(A) Regel
(B) Canopus

(C) Sun
(D) Betelgeuse

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Laboratory Thermometer has a range of...?

(A) -20°C to 50°C
(B) 0°C to 100°C

(C) 10°C to 110°C
(D) 50°C to 200°C

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When water is filled in a bottle and is allowed to freeze, the bottle breaks because...?

(A) Water expands on freezing
(B) Bottle contracts at freezing point

(C) temperature outside the bottle is less than that inside the bottle.
(D) None of the above

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Escape velocity of a rocket fired from the earth towards the moon is a velocity to get rid of the _______...?

(A) Centripetal force due to the earth’s rotation
(B) Earth’s gravitational pull

(C) Pressure of the atmosphere
(D) Moon’s gravitational pull

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Which of the following was first to be discovered in the chromospheres of the sun...?

(A) Krypton
(B) Xenon

(C) Neon
(D) Helium

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Which of the following protects the body against infectious disease and foreign invaders...?

(A) Leukocytes
(B) Red blood cells

(C) Endoplasmic reticulum (ER)
(D) Golgi apparatus

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Exosphere interacts with ___________ of Earth at roughly distance of 10,000 km....?

(A) Electrosphere
(B) Magnetosphere

(C) Spectrosphere
(D) Echosphere

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Which human hormone is called love hormone...?

(A) Oxytocin
(B) Melatonin

(C) Adrenalin
(D) Renin

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Sodium carbonate is produced by____________...?

(A) haber process
(B) Amonia solvay process

(C) decons process
(D) lead chamber process

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The radioactive isotopes are formed by neutrons bombardment on the nucleus, these incident neutrons must have ___ to penetrate in the nucleus....?

(A) Very high velocity
(B) Very low velocity

(C) Intermediate velocity
(D) All of these

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