Which type of vitamin is useful for the human body through Sun? (CSS MPT 2022)

A. Vitamin B12
B. Vitamin A
C. Vitamin D
D. None of these

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Which instrument is used to measure the oxygen level of the blood? (CSS MPT 2022)

A. Thermometer
B. Oximeter
C. Spirometer
D. None of these

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Which of the planet moves fastest around the Sun? (CSS MPT 2022)

A. Venus
B. Mercury
C. Jupiter
D. None of these

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Which of the following gas is used in the Refrigerator for cooling? (CSS MPT 2022)

A. Methane
B. Ammonia
C. Nitrogen
D. None of these

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