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Question

Ans key is (3).  We thought it is (1)-A and D only.  Can help to explain why B ? Thank you !

Source: Nanyang Primary

Answer

prevent water already collected to be evaporated

0 Replies 1 Like ✔Accepted Answer

A beaker with smaller opening would mean bigger exposed surface area for the sea water to evaporate. More water vapour would condense onto the surface of the plastic hence more water would drip down into the beaker.

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