No, rivers flow into oceans, and "source" implies "from." Sources of rivers are found in the mountains.
oceans
Most of the rivers, lakes, ponds, glaciers are all fresh water sources and seas and oceans are salt water sources.
They are found in oceans, lakes, and rivers.
Rivers, lakes,oceans, and ice
oceans, plants, soil, animals, and streams and rivers
Oceans, Ice, Rivers and Lakes, and Groundwater.
The salts are dissolved by rivers in the mountains and transported to Oceans and Seas.
The four main sources of water are, ground water, rivers or lakes,oceans,and ice
Earth's water is predominantly found amongst the following sources: oceans, rivers, lakes, glaciers, groundwater, ice and snow, and the atmosphere
natural landforms such as rivers, streams, oceans. also weathering - such as rain.
Water evaporates from water bodies. So, rivers, oceans, seas are the sources of water in water cycle.
The four main sources of water are, ground water, rivers or lakes,oceans,and ice