An atom of an element has 11 protons, 11 electrons and 12 neutrons. The atomic mass of an atom is...? Mcqs

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An atom of an element has 11 protons, 11 electrons and 12 neutrons. The atomic mass of an atom is...?

(A) 11
(B) 12

(C) 22
(D) 23

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Which process allow movement in and out of cell...?

(A) Osmosis
(B) Diffusion

(C) Active transport
(D) All of these

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Near Earth's surface g = ______...?

(A) 10 ms^-2
(B) 1.6 ms^-1

(C) Both (a) and (b)
(D) None of these

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In thrombocytopenia condition, bone marrow makes...?

(A) Too few platelets
(B) Normal platelets

(C) Too many platelets
(D) Does not effect

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How many layers does the earth have...?

(A) 1
(B) 2

(C) 3
(D) 4

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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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The sun is made up of 99.9% of ________________ and ______________...?

(A) Oxygen and Hydrogen
(B) Hydrogen and Sulfur

(C) Carbon and Silicon
(D) Hydrogen and Helium

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A communication satellite completes its one revolution around the Earth in ______ hours....?

(A) 6
(B) 12

(C) 18
(D) 24

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In Fishes excretory Product is__________...?

(A) Nitrogen
(B) Ammonia

(C) Uria
(D) Carbon dioxide

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Microorganisms can only be seen with an equipment called ________...?

(A) Microscope
(B) Telescope

(C) Spectroscope
(D) None of these

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