National children science Congress 2021 Main theme : science for sustainable living SUB THEMES: 1. ecosystem for sustainable living 2. appropriate technology for sustainable living 3. social innovation for sustainable living 4. design development and modelling for sustainable living 5. traditional knowledge system for sustainable living
pls help me in this guys
who ever answer this I will mark as brainlist
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Design development and modelling for sustainable living
But please mark as brainlist answer
But please mark as brainlist answer
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