Sea and lakes; Beauty can be seen as economic gain potential. Sea and The lakes also offer them while presenting them. With dangers every moment We know that we can meet everywhere; However, the dangers we encounter at sea It is obvious that survival is more difficult to get rid of the dangers on land. In the sea The maritime must be able to get rid of the dangers without being damaged. The sea that may emerge in the sea vehicle or the sea that will consist of oil and derivatives In fires, the layer on the surface of the sea can burn and this sea burning in the victim may have to pass through the field. In this case, a good mermaid must do, first the sinking ship to protect from the dangers and to reach the vicinity of life -saving tools. This In the course, to be breathing on the water surface, safely under the water surface to be able to swim and in the meantime, your ears are not damaged by pressure You will find and apply the information to provide. This information is also the first techniques of the dive called free diving. It will allow you to explore the unique beauties of gold by giving. A task of the eardrum is also in accordance with the pressure changes that affect the body or It is to control air pressure by stretching out. For the membrane to do this task The air pressure inside and the outside air pressure must be equalized. Pressure of the eardrum The need for balancing is caused by pressure changes outside the body. External pressure, Apart from water mass, at sea level, equal to the internal pressure of the body and 1 atmosphere value. 1 atmosphere increases at every 10 meters depth from the surface of the water to the bottom.
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