ហេតុអ្វីបានជាទឹកសមុទ្រប្រៃ?(Why is the sea salty?)

There are a lot of water on the Earth, and it mixes very well with water.

There is some salt in all water. Water on the land run into the lakes and rivers. The river run into the seas and ocean. They carry a little of salt with them some of the ocean water moves into the air and clouds. It evaporates. Salt can’t evaporate. It stays in the ocean.

The water in the ocean has more salt than the water in river. Ocean water is about 3½% salt. Some seas have more salt than others.

Some lakes do not have a river to carry the water and salt away. Some of water are evaporates, but the salt cannot. These lakes are very salty. There are two famous lakes like this

The Dead Sea

They are the Dead see in the Middle East and the Great Salt Lake in the state of Utah in The United States. They’re much saltier than the Atlantic Ocean and the Pacific Ocean.

The Great Salt Lake