An undesirable change in the characteristics of air, water and land environment that is harmful to humans and living things is known as...? Mcqs

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An undesirable change in the characteristics of air, water and land environment that is harmful to humans and living things is known as...?

(A) Pollutant
(B) Pollution

(C) Climate Change
(D) Global Warning

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Ozone is a gas found in the layer...?

(A) Troposphere
(B) Mesosphere

(C) Stratosphere
(D) Exosphere

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Yeast is an example of...?

(A) Bacteria
(B) Fungi

(C) Algae
(D) Virus

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What is caused by the revolution of the Earth around the Sun...?

(A) Day and Night
(B) Summer and Winter

(C) Tides
(D) Earthquakes

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Which of the following protects the body against infectious disease and foreign invaders...?

(A) Leukocytes
(B) Red blood cells

(C) Endoplasmic reticulum (ER)
(D) Golgi apparatus

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The ratio of pure gold in 18 carat gold is _______________...?

(A) 0.5
(B) 0.9

(C) 0.8.5
(D) 0.75

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The _____ is the largest natural source of light...?

(A) Sun
(B) Moon

(C) Star
(D) None of these

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Water vapour beyond the dew point result in_________...?

(A) Precipitation
(B) Hailstorm

(C) Condensation
(D) Formation of ice

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The most abundant element in human body is __________...?

(A) Hydrogen
(B) Blood

(C) Oxygen
(D) Protein

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Which of the following is a volcanic plateau...?

(A) Antrum Plateau
(B) Brazilian Plateau

(C) Anatolia Plateau
(D) Tibetan Palteau

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