What are the products in the reaction: CH4 + 2O2 → CO2 + 2H2O...? Mcqs

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What are the products in the reaction: CH4 + 2O2 → CO2 + 2H2O...?

(A) Methane and Oxygen
(B) Carbon dioxide and Water

(C) Hydrogen and Oxygen
(D) Carbon and Water

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Blood which heart pumps to lungs is__________...?

(A) deoxygenated blood
(B) lymph fluid

(C) atria blood
(D) oxygenated blood

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When our sun reaches the end of its red giant phase, it will turn into a___________...?

(A) Supernova
(B) White Dwarf

(C) Black Hole
(D) Neutron Star

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Vertebrates animals that maintain a constant body temperature are called...?

(A) Cold-blooded
(B) Warm-blooded

(C) Both A and B
(D) None

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Which animal has no vocal chords ...?

(A) Lion
(B) Zebra

(C) Dolphin
(D) Giraffes

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Water soluble vitamins are released by__________...?

(A) Sweat
(B) Tears

(C) Injections
(D) Urine

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The weight of an average human male brain is about...?

(A) 1 gr
(B) 1200 gr

(C) 1350 gr
(D) 1500 gr

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Hepatitis is caused by: ____________...?

(A) Protozoans
(B) Algae

(C) Fungi
(D) Virus

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Which water will freeze first...?

(A) Hot
(B) Cold

(C) Both
(D) None

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The particles of a liquid...?

(A) Are tightly packed and stay in a fixed position
(B) Are free to move in a container but remain in close contact with one another

(C) Are widely spaced and move freely in any direction
(D) Are sparse and vibrate at long distances

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