SSC SSC Selection Post (Phase 13) 2025 Mock Test General Science Biology Ecology & Environment

ନିମ୍ନଲିଖିତ ମଧ୍ୟରୁ କେଉଁଟି ବାୟୁମଣ୍ଡଳରେ “ଓଜୋନ ରନ୍ଧ୍ର” ଗଠନ ପାଇଁ ଦାୟୀ?

1
ବେଞ୍ଜୋପିରିନ୍  
2
ହାଇଡ୍ରୋକାର୍ବନ୍  
3
କ୍ଲୋରୋଫ୍ଲୋରୋକାର୍ବନ୍  
4
UV ବିକିରଣ  
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