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Most rivers are filled by precipitation, which is caused by evaporating water. Salt can not evaporate with it as it is a mineral not a liquid. The water in rivers is always flowing with nice clean water and the sediment from animal feces and carcasses are wash away into the ocean, and can not turn to salt in the bottom of the river.Therefor rivers are full of fresh water.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoThey did not come from the ocean, they came from the precipitation of clouds which is fresh water. Later they will eventually reach the ocean.
Most of the time, they are not exactly fresh due to the surroundings. The reason why they can sustain the area that they do though, is primarily because of snow in the mountains which runs down to the rivers and lakes which we have. Another factor for this is Rain, which is caused from evaporation of h20 which then comes down as rain. Even then, rain is polluted with all of the pollutants in the air.
Wiki User
∙ 11y agowhen its raining fresh water comes in to the river
Wiki User
∙ 12y agoThis is a UK answer
All UK rivers are fresh water from their source.
As they become closer to the sea they become brackish.
I:E the water now has a salt content.
Wiki User
∙ 14y agoThe mermaids boil the water as it passes through the delta.
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Who has more fresh water lakes and rivers or groundwater?
lakes and rivers
Where does fresh water come from naturally?
Rain is fresh, and various lakes, rivers, and glaciers contain fresh water (although lakes and rivers are often polluted).
Where do you find fresh water?
lakes and rivers
Why are environmentalists strongly against polluting rivers and lakes?
water is a critical resource. the most useful water for humans is fresh water and fresh water is stored in rivers and lakes.
Is most of the world's water in lakes and rivers?
If you are talking about fresh water, most of it is from lakes rivers, and underground. But the most water is definitely found in the ocean.
Where is fresh water?
In rivers, lakes, rain. Everywhere but the sea.
What are river streams and lakes?
Lakes, rivers, and streams are bodies of water.
What bodies of water are fresh water?
lakes and rivers also ponds
Where do fresh water fishes mostly live?
mostly rivers and lakes (=
From what sourced do people get fresh water?
lakes and rivers and groundwater (underground)
What are 3 geographic locations of fresh water?
ponds,lakes,rivers.
What two sources of fresh water?
Rain and springs Rivers and lakes.
