Which is not a cause of land pollution...? Mcqs

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Which is not a cause of land pollution...?

(A) Plastic bags, bottles, glass bottles, tin cans
(B) Vegetables and fruit cutting

(C) Animal wastes
(D) All of these are causes of land pollution

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What happens when oil is burnt...?

(A) Carbon dioxide and energy will be released
(B) Carbon monoxide and water will be released

(C) Oxygen and carbon will be released
(D) Nitrogen and hydrogen will be released

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Retinol is the chemical name of...?

(A) Vitamin A
(B) Vitamin B

(C) Vitamin C
(D) Vitamin K

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What is the range, in hertz, of the normal human hearing...?

(A) 10 Hz to 10 kHz
(B) 20 Hz to 20 kHz

(C) 2000Hz
(D) 40 Hz to 40 kHz

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Blood glucose level is raised by the following except __________...?

(A) Carbohydrates
(B) Insulin

(C) Cholesterol
(D) Epinephrine

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Sperms fuse with eggs to form ______...?

(A) Embryo
(B) Fetus

(C) Zygote
(D) Gamete

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A (an) ________ is the smallest possible particle of an element that can combine to form new compounds....?

(A) Molecule
(B) Atom

(C) Compound
(D) Element

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Which colour has smallest wavelength in the spectrum of white light...?

(A) Red
(B) Blue

(C) Yellow
(D) Violet

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Which of the following processes is used in water purification...?

(A) Reverse Osmosis
(B) Osmosis

(C) Cytolysis
(D) Turgor Pressure

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The flash of light from lightening travels at about ____...?

(A) 2 x 10^5 m/s
(B) 1 x 10^4 m/s

(C) 5 x 10^6 m/s
(D) 3 x 108 m/s

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