The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________...? Mcqs

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The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________...?

(A) Conduction of heat upward from a hot surface
(B) Convection from a hot surface

(C) Absorption of infrared energy that has been radiated from the surface
(D) Heat energy from the earth’s interior

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Metals are good conductors of electricity because they have free _____...?

(A) Electrons
(B) Protons

(C) Neutrons
(D) Photons

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Which one of the following affects the photosynthesis and growth of plants...?

(A) Hydrogen
(B) Oxygen

(C) Nitrogen
(D) Acid Rain

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Communication satellites are used for _____...?

(A) Provide weather forecasting
(B) Mapping

(C) Telecommunication
(D) Space exploration

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The sun completes one full rotation at its equator in how many days...?

(A) 365 days
(B) 30 days

(C) 25 days
(D) 23 days

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Roots, stem and leaves produce their offspring through _____...?

(A) Sexual Reproduction
(B) Fragmentation

(C) Binary Fission
(D) Asexual Reproduction

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Which of the following substances contain disease producing pathogens in the weakened form...?

(A) Vaccines
(B) Antibiotics

(C) Antibodies
(D) Plasmids

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Vertebral Column in human beings consists of how many vertebrae...?

(A) 5
(B) 10

(C) 12
(D) 33

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Which has highest fuel value...?

(A) Charcoal
(B) Gasoline

(C) Hydrogen
(D) None of these

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The observable traits of an individual are:...?

(A) Genotype
(B) Phenotype

(C) Alleles
(D) None of these

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