Which of the following is not a unique property of water?
a) surface tension
b) it’s powerful solvent
c)ice is less dense than water
d)it only exists in liquid and solid form.

Open spaces in water's solid structure makes its solid state less dense than its liquid state.

Explanation:

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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the fossil record provides evidence of a common ancestor to many species.