Answer:
D.
Explanation:
Force is strength and energy as an attribute of physical action or movement.
Answer:

Explanation:
Let assume that 100 kg of the compound is tested. The quantity of kilomoles for each element are, respectively:




Ratio of kilomoles oxygen to kilomole nitrogen is:


It means that exists 1.499 kilomole oxygen for each kilomole nitrogen.
The empirical formula for the compound is:

Answer: The amount of light that enters the pupil is controlled by the Iris
Explanation:
I am pretty sure the answer would be a