A. The earth’s atmosphere
B. Interstellar dust
C. both A and B
D. None of these
Submitted by: Rashid Mehmood
Correct Answer: C. both A and B ✔
Last Updated: January 12, 2020
A. The earth’s atmosphere
B. Interstellar dust
C. both A and B
D. None of these
Submitted by: Rashid Mehmood
Correct Answer: C. both A and B ✔
Last Updated: January 12, 2020