In what way are alginate and agar-agar impression materials alike?

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Both materials experience increased gelation when the temperature risesExtending the mixing duration helps to shorten the setting time for bothBoth undergo deformation upon removal because the gel fibers become distortedEach can be reused multiple times to take new impressionsBoth materials set faster when exposed to cold temperatures

Explanation

Alginate and agar-agar impression materials both suffer deformation during removal due to the distortion of their gel fiber structures. This characteristic distinguishes them from other impression materials. The other options are incorrect because gelation does not increase with temperature, mixing time adjustments do not reduce setting time in both, and neither material is reusable for fresh impressions.