While heating various liquids in a lab, sascha notices that many of the liquides boil more quickly

This means they have different consistencies, and different chemical components.

your answer is rna to the question.

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.