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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The most abundant element in sea water is...?

(A) Chlorine
(B) Sodium

(C) Sulfur
(D) Magnesium

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Which mineral plays an important role in the distribution of water in the body...?

(A) Calcium
(B) Magnesium

(C) Iodine
(D) Sodium

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Permanent hardness of water can be removed by adding __________...?

(A) Chlorine
(B) Washing soda

(C) Bleaching powder
(D) None of these

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The matter that sound travels through is called the...?

(A) Frequency
(B) Medium

(C) Amplitude
(D) Vibration

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In flowering plants xylem is made up of ____ types of tissues....?

(A) 1
(B) 2

(C) 3
(D) 4

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Which of the following is an example of a solution...?

(A) Sand and water
(B) Oil and water

(C) Sugar and water
(D) Salt and air

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Scientific reasoning based on “if-then” statement called...?

(A) Inductive reasoning
(B) Deductive reasoning

(C) Scientific reasoning
(D) None

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All of the following organs in the human body are located both on the right and the left sides, except;_________...?

(A) Lungs
(B) Kidneys

(C) Spleen
(D) Eyes

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Which of the following is not the source of carbon dioxide emission...?

(A) Burning of fossil fuels, wood, cool
(B) Solar power

(C) Respiration
(D) Car exhaust smoke

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