The source of a river is the place where it begins: a spring, a melting glacier, or a high, wet land where many tiny streams start. Its mouth is the place where it ends, flowing into the sea, a lake or a bigger river. A tributary is a smaller river that flows into a bigger one.
বইগুলো এখনো বাংলা ভাষায় পাওয়া যায় না — ইংরেজি সংস্করণ দেখানো হচ্ছে।
Earth and Space Sciences · পরিভাষা
Source, mouth and tributary কী?
অন্য নাম: source (of a river) · mouth (of a river) · tributary