Which mineral is makes red blood cells and it involved in oxygen transport and storage for energy conversions...? Mcqs

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Which mineral is makes red blood cells and it involved in oxygen transport and storage for energy conversions...?

(A) Magnesium
(B) Sodium

(C) Copper
(D) Iron

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Density of Water is_________...?

(A) 897 kg/m³
(B) 997 kg/m³

(C) 1000 kg/m³
(D) 1025 kg/m³

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How many layers does sun have ...?

(A) 6
(B) 4

(C) 7
(D) 3

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Which two organs glands are affected by malaria...?

(A) Lungs and heart
(B) Spleen and liver

(C) Kidneys and lungs
(D) Heart and brain

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A moderator is used in nuclear reactor in order to ...?

(A) Accelerate the neutrons
(B) Slow down the speed of the neutrons

(C) Increase the number of elections
(D) Decrease the number of electrons

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During germination of maize seed, first part arises from the seed is...?

(A) Radical Root
(B) Cotyledon

(C) Hypocotyl
(D) Plumule

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How many grams in a pound...?

(A) 451
(B) 453

(C) 455
(D) 457

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Which of the following is caused by a deficiency of iron in the diet...?

(A) Giotre
(B) Scurvy

(C) Anaemia
(D) Rickets

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Chemical reaction requires particular conditions to carry down at proper rate, especially...?

(A) Temperature and Nature
(B) Nature and Pressure

(C) Nature and Structure
(D) Temperature and Pressure

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Deforestation will decrease...?

(A) Soil erosion
(B) Rainfall

(C) Landslides
(D) Soil fertility

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