What causes a meteoroid to glow as it falls through the atmosphere of Earth?
A B C D
wind gravity friction sunlight
Question: What causes a meteoroid to glow as it falls through the atmosphere of Earth?
(A) wind
(B) gravity
(C) friction
(D) sunlight

Answer: (C) friction
Answer: (D) sunlight
Question: What causes a meteoroid to glow as it falls through the atmosphere of Earth?
(A) wind
(B) gravity
(C) friction
(D) sunlight
Answer: (C) friction