36. The intensity of an earthquake is measured by

(A) Seismograph

(B) Anemometer

(C) Speedometer

(D) Kilometer

Answer:

Explanation:

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37. The biggest bone of our body is called

(A) Vertebra

(B) Ribs

(C) Femur

(D) None of these

Answer:

Explanation:

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38. We use grease in bicycle wheel to

(A) reduce friction

(B) increase speed

(C) increase friction

(D) None of these

Answer:

Explanation:

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39. The air we breathe out contains

(A) Nitrogen

(B) Carbon dioxide

(C) Oxygen

(D) Carbon monoxide

Answer:

Explanation:

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40. Which of the following animals lays eggs?

(A) Rat

(B) Tiger

(C) Snake

(D) Fox

Answer:

Explanation:

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