Why does the Stevenson's screen have louvers and painted white?

Give the reasons why the Stevenson's screen has louvers and painted white.

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(i) The instrument has louvers to allow free air circulation in order to measure the actual air temperature and not room temperature.
The louvers keep the screen well ventilated.

(ii) The Stevenson's screen is painted white to reflect heat from the sun in order to measure the shade temperature and not the sun's direct ray temperature.

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maurice.mutuku answered the question on May 27, 2017 at 12:31

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