The importance of water in nature

Water is one of the most important elements for life. It covers more than 70% of our planet's surface and is the basis of all habitats that support most life. Among the best-known and largest bodies of water in the world, we find the seas and lakes.

What is a sea?

A sea is a large area of ​​salt water that is connected to an ocean and covers a large part of the planet. The seas are large bodies of water and extend for kilometers and kilometers. The sea has enormous importance in human life since, in addition to its role in biodiversity, it is an important means of communication and transportation of goods between continents.

What is a lake?

On the other hand, a lake is a mass of fresh water, formed through a depression in the terrain or the action of glaciers. Lakes are smaller bodies of water than seas, and their size can vary greatly. They are found in different places on our planet and, on many occasions, are a source of important resources for the communities that surround them.

Differences between the sea and the lake

Although both bodies of water are important to our planet and our existence, there are some notable differences between them that we must take into account. Below we mention some of these differences:

Salinity

One of the most important aspects that differentiate the sea from the lake is the salinity of the water. The sea is salty due to its connection to the ocean, while lakes are freshwater, and generally do not have a large amount of salt.

Size

Another significant difference between the sea and the lake is size. The sea is much larger than any lake. Seas cover large areas of the Earth's surface, while lakes are usually much smaller and located in more specific regions.

Aquatic life

As for aquatic life, there are also notable differences between the sea and the lake. The sea is home to a wide variety of aquatic species that are not found in lakes, and that are adapted to salt water. On the other hand, lakes are home to freshwater species, many times endemic to the area in which they are found.

Conclusions

In conclusion, both bodies of water are important for our planet and for the life of all the species that inhabit it. Each one has its own characteristics and peculiarities that make them unique. However, as we have seen, there are some essential differences that we must know to better understand the importance and role of seas and lakes in our ecosystem.

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