Conservation, the act of protecting Earth's natural resources for current and future generations
Answer:
umm ill find that for you or do you already know
Explanation:
A <u>pneumotachometer</u> actually measures <u>Air</u><u> </u><u>flow</u><u> </u>by sensing the <u>pressure</u> on ethier side of a fine mesh screen.
so, correct option is :
=》O Air Flow: Pressure
