ป่า, ต้นไม้, หมอก, มลพิษ, สิ่งแวดล้อม, กลางแจ้ง, ภูมิอากาศ, ควัน, มืด, ภูมิประเทศ, ภูเขา
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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