Hello there :)
I am quite sure this is a true/false question
This statement is false.
Yes, the cilia and mucus in the trachea does sweep upward, however, it moves the mucus towards the pharynx where it is swallowed not towards the nose where it is sneezed out.
Well, if you look at the scientific process, the first step is to have a question to base it on.
Is is plants that provide food, provide shelter, and prevent erosion, since plants are a major food source for many animals, as well as cover from rain and weather.
C because it is thrown harder and has more thrust
The answer is false (sorry I'm late.)