Radio labeling and carbon dating also show some uses of radioactive isotopes in determining the ____ of fossils....? Mcqs

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Radio labeling and carbon dating also show some uses of radioactive isotopes in determining the ____ of fossils....?

(A) Size
(B) Age

(C) Shape
(D) Color

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NASA’s _________ is currently studying the sun up close....?

(A) Darker Solar Probe
(B) Walker Solar Probe

(C) Parker Solar Probe
(D) Falkner Solar Probe

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What is the average adult pulse rate...?

(A) 140-150
(B) 115-125

(C) 72-80
(D) 60

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The solar wind can reach speeds of up to...?

(A) 600 km/s
(B) 700 km/s

(C) 800 km/s
(D) 650 km/s

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A force can change all of the following of an object except...?

(A) Direction
(B) Mass

(C) Size
(D) Speed

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What percentage of earth’s water supply is fresh water___________...?

(A) 3%
(B) 5%

(C) 21%
(D) None of these

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Sound of frequency below 20 Hz is:___________...?

(A) Audiosonic
(B) Infrasonic

(C) Ultrasonic
(D) Supersonic

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By which process copper is refined ____________...?

(A) Roasting
(B) Oxidation

(C) Zone Refining
(D) Electrolysis

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Scientific reasoning moves from specific to general ____...?

(A) Inductive
(B) Deductive

(C) Observation
(D) Both a and b

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Heavy mechanical complex use a large amount of water for_________...?

(A) Cooling
(B) Freezing

(C) Washing
(D) Mixing

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