__________ contains the ozone layer....? Mcqs

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__________ contains the ozone layer....?

(A) Troposphere
(B) Stratosphere

(C) Mesosphere
(D) Ionosphere

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Solid wastes that are easily decompose by decomposers are called...?

(A) Biodegradable
(B) Non-biodegradable

(C) Both A and B
(D) None

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“Ornithology” is the study of_____________...?

(A) Birds
(B) Insects

(C) Sea Plants
(D) Sea Animals

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Soil pollution is caused by...?

(A) Aerosol
(B) Ozone

(C) Acid rain
(D) All of these

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How many bones are there in a newly born infant...?

(A) 206
(B) 230

(C) 280
(D) 300

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Material from which current passes through are called...?

(A) Insulators
(B) Conductors

(C) Semiconductors
(D) None of these

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Which of the following cutting conditions greatly affects the tool wear...?

(A) Cutting speed
(B) Feed

(C) Depth of cut
(D) None of the above

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What happens to a person who receives the wrong type of blood...?

(A) All the arteries constrict
(B) All the arteries dialates

(C) The RBCs agglutinate
(D) The spleen and lymphnodes deteriorate

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E.coli is an example of...?

(A) Algae
(B) Fungi

(C) Bacteria
(D) Virus

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The lowest temperature ever recorded on the Earth is...?

(A) –89.2 °C
(B) –86.2 °C

(C) –83.2 °C
(D) –92.2 °C

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