प्राकृतिक संरक्षण, वातावरण, पर्यावरण संरक्षण, स्पीच बबल्स, परिस्थितिकी, bokeh, पृष्ठभूमि, पर्यावरण के अनुकूल बनें, स्थिरता, पारिस्थितिकी तंत्र
Public Domain
प्रासंगिक तस्वीरें
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