Why is it important that the stigma be made of a sticky material?

Most stigmas are covered with a waxy, sticky substance. This wet substance allows stigmas to provide an important service by re-hydrating dry pollen to prepare the grains to enter the ovary and initiate the process of fertilization.

Explanation:

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But do not copy this or I will report you. I swear.

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high