Form and function are related. Describe how the "form" of the tracheal wall is related to its four functions.

Ithink that b is correct but just in case wait to see if someone else answers

He should put sand around the spill in order to contain it so that it won't spread

What is the question? if you were looking to design a method of separating something, you can separate this compound by putting both in water and allowing the water to dissolve the sugar. then pour it into another beaker and evaporate it then boom! salt and sugar : )