If a light ray strikes a reflective surface at angle of 30 degrees from the normal, the light is reflected at

A. an angle less than 30 degrees
B. 30 degrees from the surface
C. 30 degrees from the normal
D. 60 degrees from the normal

C option is right

carla slowed down in the beginning of her trip, stopped, and then sped up

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.