Which element has the third most % in human body...?

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Which element has the third most % in human body...?

(A) Oxygen 65%

(B) Calcium 75%

(C) Hydrogen 10%

(D) Carbon 18%

✅ Correct Answer: Hydrogen 10%

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Source: This question is taken from the Everyday Science

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The atoms of same element which have the same atomic number but different mass numbers are known as...?

(A) Isotopes

(B) Isoelectronic

(C) Isomers

(D) Isobars

✅ Correct Answer: Isotopes

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Source: This question is taken from the Everyday Science

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Organisms that eat all the dead and waste products and returning useful elements to soil and environment are known as...?

(A) Decomposers

(B) Producers

(C) Consumers

(D) None

✅ Correct Answer: Decomposers

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Source: This question is taken from the Everyday Science

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A (an) ________ is the smallest possible particle of an element that can combine to form new compounds....?

(A) Molecule

(B) Atom

(C) Compound

(D) Element

✅ Correct Answer: Atom

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Source: This question is taken from the Everyday Science

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The most abundant element in the universe is __________....?

(A) Oxygen

(B) Hydrogen

(C) Carbon Dioxide

(D) Silicon

✅ Correct Answer: Hydrogen

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Source: This question is taken from the Everyday Science

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If order and corresponding element of the matrices are same then matrices are said to be...?

(A) scalar

(B) diagonal

(C) equal

(D) rectangular

✅ Correct Answer: equal

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Source: This question is taken from the Everyday Science

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Elements which have same number of protons but different number of neutrons are called as _________ ...?

(A) Isotopes

(B) Isomers

(C) Allotropes

(D) Allomers

✅ Correct Answer: Isotopes

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Source: This question is taken from the Everyday Science

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Which one of the following elements the drum of a Photostat machine is made up of: _________...?

(A) Aluminium

(B) Selenium

(C) Barium

(D) None of these

✅ Correct Answer: Selenium

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Source: This question is taken from the Everyday Science

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An element that does not occur in nature but can be produced artificially is__________...?

(A) Plutonium

(B) Uranium

(C) Radium

(D) Thorium

✅ Correct Answer: Plutonium

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Source: This question is taken from the Everyday Science

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The most abundant element in human body is __________...?

(A) Hydrogen

(B) Blood

(C) Oxygen

(D) Protein

✅ Correct Answer: Oxygen

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Source: This question is taken from the Everyday Science

Which element has the third most % in human body...? Mcqs

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