Page 96 - ภาษาอังกฤษสำหรับสายวิทยาการอุตุนิยมวิทยา

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a. (1) Each part of the earth has one day period and one night period every 24 hours

(2) Since the earth completes one rotation every 24 hours

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b. (1) According to where the earth is in its revolution around the sun

(2) One hemisphere will be closer to the sun than the other

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C. (1) As the weight of the atmosphere changes

(2) The height of the column of mercury in the tube changes

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d. (1) The aneroid barometer must be checked by comparing it with a mercurial barometer

(2) When it is used for official measurement

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e. (1) As millibars are the units of atmospheric pressure used on weather maps

(2) The sea level barometric pressure reading is converted to millibars

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f. (1) The altimeter will read the airport's elevation

(2) When an aircraft's altimeter has been set to the local pressure

Note: Use "it" in the second phrase of your sentence.

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