Disolved oxygen (DO) in water should be...? Mcqs

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Disolved oxygen (DO) in water should be...?

(A) 400 to 800 ppm
(B) 4000 to 8000 ppm

(C) 0.4 to 0.5 ppm
(D) 4 to 5 ppm

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If a child has cholera, which environment pollution needs to be addressed...?

(A) Land
(B) Water

(C) Air
(D) None

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Water is a highly effective coolant for a car engine because _________...?

(A) Water is good conductor of heat
(B) Water has very high specific heat capacity

(C) Water boils at a comparatively high temperature
(D) Evaporation of water produces lot of cooling

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ICT stands for what...?

(A) Information and communication techniques
(B) Internet and communcation television

(C) Internet communication tool
(D) Information and communication technology

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Water enters the root hair by ____...?

(A) Diffusion
(B) Osmosis

(C) Active Transport
(D) Transpiration

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What is the Molecular Formula for Glucose _______ ...?

(A) C4H10O6
(B) C5H11O6

(C) C6H12O6
(D) S6H12O6

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Chromosomes in the cell which are similar to each other in shape and size are called...?

(A) Homologous pair
(B) Heterologous pair

(C) Sister chromatids
(D) Non-homologous pair

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What “Enrico Fermi” invented...?

(A) X ray machine
(B) Betatron

(C) Cyclotron
(D) Nuclear reactor

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A thin partially permeable layer around the animal cell which control the substances that enter and exist is called...?

(A) Cell Wall
(B) Cell Membrane

(C) Cytoplasm
(D) Nucleus

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The atomic mass of an element expressed in gram is ______...?

(A) Gram molecular mass
(B) Gram atomic mass

(C) Gram formula mass
(D) Mole

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