Sometimes it happens that we colloquially confuse “sea” and “lake”, meanwhile you can find a number of fundamental differences.
Sea – into the land or isolated shores of the mainland, the rapids or the Islands of the ocean. Sea there are internal (inland), marginal, and inter-island imaterialise.
Internal – this is the sea, located on the land surface. As a rule, they communicate with the ocean by one or several Straits. These are the Black, Azov, Baltic sea. Marginal seas, unlike the mainland, adjacent to the mainland or separated from the ocean by Islands, for example, the Chukchi and the Barents sea. Imaterialise sea located between the continents: Red and Mediterranean seas. Inter-island sea are usually located between the major Islands. This is the Java sea. It happens that the water basin is completely isolated from the World ocean, respectively, that lake, but it is called the sea because of the large size (Caspian sea).
Kilogram of seawater contains 35 grams of various salts: 27.2 grams of sodium chloride, 3.8 grams of magnesium chloride, 1.7 grams of magnesium sulfate and a little less grams of calcium sulfate.
Edible salt is produced by evaporation of sea water. The first precipitates salt because Continue reading
Volcanoes for many of the uninitiated seem to be something fantastic and inconceivably terrible. In order to get a better idea about these objects we quote the interesting facts about volcanoes.
Only volcanic stone floating on the water’s surface is volcanic pumice. It is characterized by grey color, this stone is riddled with hollow holes formed during the cooling of the stone. This process was accompanied by the release of gases that are formed holes.
volcanic pumice, Interesting facts about volcanoes
The eruption of huge volcanoes, supervolcanoes called, often cause dire consequences. It is fire and rain, shed for miles around the volcano itself, and global climate change caused by ingress of ash into the atmosphere. Fortunately, these volcanoes erupt on the average several times in 100,000 years. One of them, located on the territory of Yellowstone national Park, scientists say that, in all likelihood, ready for another eruption.
the eruption of a SUPERVOLCANO,
The largest of the observed eruptions is considered to be the activity of the volcano of Tambora on the Indonesian island of Sumbawa. The eruption killed 100,000 people. According to researchers in Indonesia is home to the largest number of historically active Continue reading
Mohammed Musa Abdullahi woke up Saturday morning sick and sluggish. The day before he fell ill and lay down right in the school building. Abdulahi went to the house and suddenly noticed that the streets of his village, in North-West Cameroon, frightening silence reigns. Roads and yards of Soboma were littered with corpses. People were lying as if dead on the go or in the middle of a conversation with a neighbor. Killing all dogs, all the cattle, the trees fell dead birds and insects.
So on August 21, 1986 in the village on the shores of lake Nyos killed 11 family members Abdulahi and 1,700 of his countrymen. He survived because he was in a locked office, in a school built on a hill.
The lake before the disaster
The lake after the crash
Nyos is a lake of extraordinary beauty – surrounded by mostly cultivated fields, picturesque rocks and green hills. Pearl-gray surface serenely calm, but deep continuously is the accumulation of explosive forces. Nyos is a crater of a once active volcano, after the eruption of which five centuries ago on the bottom left igneous plug. It is cooled and compressed under water pressure. Such lakes around the world are many, but only two are able Continue reading