Answer:
A. Thickness and temperature
Explanation:
The speed of an object at rest is 0 m/s. We can use logic to figure this out. Hope this helps!
Believe it or not white clouds can be both opaque and transparent depending on the volume and mass within that cloud. The heavier the cloud, the more opaque it'll seem, but the lighter the cloud is, it'll seem transparent-
E concave mirror because it reflects the light
