Blood which heart pumps to lungs is__________...? Mcqs

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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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Which metal is extracted from sea water...?

(A) Potassium
(B) Magnesium

(C) Aluminum
(D) None of these

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The most dense and heaviest planet is___________...?

(A) Jupiter
(B) Earth

(C) Mars
(D) Venus

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LED stands for _____...?

(A) Light Emitting Diode
(B) Laser Emitting Device

(C) Low Energy Device
(D) Liquid Emitting Display

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A simple machine that uses grooved wheels and a rope to raise, lower or move a load is known as...?

(A) Pulley
(B) Lever

(C) Incline Plane
(D) Wedge

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As the temperature of ice rises, the ice melts and its density...?

(A) Decreases
(B) Remain constant

(C) Increases
(D) Increases upto 10C

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If a machine performs 20 J of work in 10 sec. then it power is ______...?

(A) 200 watt
(B) 20 watt

(C) 2 watt
(D) 0.2 watt

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The type of reproduction in which two parents of different sexes are involved...?

(A) Asexual Reproduction
(B) Sexual Reproduction

(C) Binary Fission
(D) Fragmentation

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Which of the following is the reason of global warming...?

(A) Presence of sulphite
(B) Rise in CO2 concentration

(C) Oxides of nitrogen
(D) Formtion of ozone

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First Atomic theory was proposed by...?

(A) John Dalton
(B) E.Rutherford

(C) De Broglie
(D) D.I.Mendeleef

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