Science-tech and Ecology-Environment questions in UPSC Prelims 2021
The Science-tech and Ecology-Environment questions in UPSC Prelims 2021 were basic, conceptual and logical. The video shows a way of solving the questions in simple manner keeping focus on the NCERT textbooks
Please click the link below to check the UPSC Prelims 2021 Answer Key & Marks Calculator
https://acsindiaias.com/upsc_answer_k...
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