SEA

8 interesting facts about the sea that you may not know

Today we offer eight sea curiosities that you may not know about.

Freepik
The sea hasn't been always salty: when the oceans were formed, due to condensation of water vapor in the atmosphere, they were composed of fresh water. Salt arrived little by little, carried by rivers.
Viandante
Usually the color of the sea is blue or azure, but it is simply the sky that is reflected by the sea. Water absorbs sunlight in a special and complicated way. Sometimes it appears green because of microscopic algae in suspension or it can appear dark because of the seabed.
pixabay
According to one theory, the seas were originally freshwater. They formed about 4 billion years ago when the Earth began to cool and the vapor clouds that enveloped it turned into rain. The salt came a little at a time, brought by rivers eroding the rocks.
Hojnny Goldsmith - Flickr
With special equipment, it is possible to remove salt from seawater and make it possible to drink seawater that becomes drinkable.
Freepik
Waves are formed by wind. In fact, wind is responsible for the genesis of waves, which occurs in an area of the sea called the fetch zone. The wind blows across the surface of the sea, pushing the water in a motion that creates a ripple that follows one another like a swing. Sea currents also contribute to waves.
Viandante
Tides are caused by the gravitational force exerted by the Moon on Earth, which results in a periodic movement of the sea water level. High tide occurs when the Moon is closest to Earth, while low tide occurs when the Moon is far away. This occurs about every 6 hours.
Freepik
Plastic waste thrown into rivers and seas is carried by wind and currents and accumulates to form huge plastic islands. The largest is found in the Pacific Ocean.
Freepik
The Dead Sea, located between Israel, Palestine and Jordan is the saltiest body of water in the world, but unfortunately it is dying. The salinity is so high that there are no fish or algae in the Dead Sea. Unfortunately, the water level is dropping by 1 meter every year, and scholars believe that unless humans intervene, this basin is destined to dry up.
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