A Spectroscope is used to _______...? Mcqs

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A Spectroscope is used to _______...?

(A) Measure the distance of a star from Earth
(B) Identify the chemical elements present in a star

(C) Determine the temperature of a star
(D) Calculate the velocity of a star

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The chemicals released from one cell and carried to signal some distant cell through blood are ______...?

(A) Neurotransmitters
(B) Enzymes

(C) Hormones
(D) All of these

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Epileptic and parasitic plants grow on which of the following...?

(A) Plants
(B) Sea

(C) Dogs
(D) Rocks

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The scientific study of spiders is called __________ ...?

(A) Arachnology
(B) Osteology

(C) Pomology
(D) None of these

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Internal friction of fluid is called_________...?

(A) Viscosity
(B) Surface tension

(C) Resistance
(D) Cohesive force

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Which one of the following is not a disadvantage of friction...?

(A) Energy loss
(B) Fasteners

(C) Wear and Tear
(D) Speed limit

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Which of the following layers make radio transmission possible...?

(A) Troposphere
(B) Ionosphere

(C) Mesosphere
(D) Stratosphere

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About ______ of the body weight of a mammal is water....?

(A) 70%
(B) 75%

(C) 80%
(D) 90%

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How many noses does an ant have...?

(A) One
(B) Two

(C) Three
(D) None

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Disolved oxygen (DO) in water should be...?

(A) 400 to 800 ppm
(B) 4000 to 8000 ppm

(C) 0.4 to 0.5 ppm
(D) 4 to 5 ppm

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