Siti observed water droplets forming on the inner surface of a plastic sheet covering a pot of moist soil placed under the sun. Which process(es) led to the formation of these droplets?
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Worked Solution
Step 1: Heat from the sun causes water in the moist soil to gain heat and evaporate into water vapour.
Step [2-9]: The warm water vapour rises and touches the cooler inner surface of the plastic sheet.
Step [2-9]: The water vapour loses heat to the sheet and condenses into liquid water droplets.
Correct answer: Evaporation followed by condensation
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