Teaching OSSC TGT Teachers Mock Test 2023 General Knowledge Ecology and Environment Conservation efforts: India and World

ରାମସର ସମ୍ମିଳନୀ କାହା ସହିତ ଜଡିତ?

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ଜଳବାୟୁ ପରିବର୍ତ୍ତନ
2
କୀଟନାଶକ ପ୍ରଦୂଷଣ 
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ଓଜୋନ ସ୍ତର ହ୍ରାସ 
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ଆର୍ଦ୍ରଭୂମି ସଂରକ୍ଷଣ 
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