Solid, liquid, and gas from least to most dense

gas, liquid, and then solid

Explanatioson:

Solids are typically going to be more dense; the molecules are more tightly packed together than in a liquid or a gas. Solids have a higher density. Liquids are more free-moving and the molecules do not hold on so tightly to each other, hence the lower density. Gases are completely free-moving and have a much lower density than the other two

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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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