वायु गुणवत्ताको नियमन परागकण खाना प्रेरणा र अध्ययन साथी

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Table of Contents

Table of Contents

WATCH

Nature's contributions to people

वायु गुणवत्ताको नियमन

Learn

वायु प्रदूषण
वायु प्रदूषण को प्रभाव
प्रकृति वायु गुणवत्ताको नियामक
Conserving nature for clean air and good health

Quiz

अभ्यास
Drag and Drop

Trees are like

giant air purifiers.

Let's save them!

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