The color of blood is red due to __________...? Mcqs

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The color of blood is red due to __________...?

(A) Haemoglobin
(B) Neutrophils

(C) Esinophils
(D) Hematocrit

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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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Seed Coat is also called _________...?

(A) Radical
(B) Testa

(C) Tegmen
(D) None of these

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In plants, which part transports sugar produced in the leaves to all parts of plants...?

(A) Phloem
(B) Xylem

(C) Stomata
(D) Roots

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A radioactive nuclide emits a β-particle. The atomic number (proton number) of the nucleus number of ______...?

(A) Stays the same
(B) Decreases by 2

(C) Increases by 1
(D) Decreases by 4

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Fruit plant that flowers only once in lifetime...?

(A) Mango
(B) Ground Nut

(C) Banana
(D) Peach

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Rabbit feed on seeds and leaves that’s why it is called as...?

(A) Omnivore
(B) Herbivore

(C) Carnivore
(D) None

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The main culprit of greenhouse effect is Carbon dioxide. But which is the second element contributing most to greenhouse effect...?

(A) Nitrogen Dioxide (NO2)
(B) Chlorofluorocarbons (CFCs)

(C) Methane (CH4)
(D) High-fructose corn syrup (HFCs)

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Nebulae are made up of ________...?

(A) Oxygen (97%) and Nitrogen (3%)
(B) Hydrogen (97%) and Helium (3%)

(C) Carbon (50%) and Nitrogen (50%)
(D) Helium (97%) and Hydrogen (3%)

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Number of electrons lost by atoms of group IIIA equals ______...?

(A) 1
(B) 2

(C) 3
(D) 4

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