Answer: At very low temperatures, gases expand less for a given pressure change than they do at high temperatures.
Explanation:
Answer:
D It must be equal to 1.00
Explanation:
The refraction in the second medium must be equal to 1. The refraction index is given as the ration of the angle of incidence to the angle of refraction. This is given as a fraction. In other words:

where Θ₁ and Θ₂ are angles of incidence an refraction, and n is the refractive index.
At a critical angle, the refraction is equal to the reflection inside the medium. This results in a phenomenon called total internal reflection where light is reflected internally in the medium.
Answer: I am confident the answer is B
Explanation:
forgive me if im wrong
A. 5 It can either 3 or 5 you search it up in google