Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) People Development & Environment Environmental Issues Ozone Layer Depletion
Chlorofluorocarbons (CFCs), important green house gases,
A. are toxic
B. vaporize just below room temperature
C. are flamable
D. are very stable
E. destroy ozone
Choose the most appropriate answer from the options given below:
1
A, B and C only
2
B, C and D only
3
B, D and E only
4
C, D and E only