Ocean biology 1 Essay Example | Topics and Well Written Essays - 1000 words

Ocean biology 1 - Essay Example The aim of his theory was to discuss the concept openly. Therefore, Wegener did not present the theory as a proven fact. There are some objects, which can float in saltwater but not in fresh water. Whether an object will sink or float, entirely depends on the relative density of the fluid itself. In universe, everything is made of molecules. Density can be described through the concept of molecules. There are some objects that are packed densely and some other objects are packed loosely. This concept is called density. Now the objects that are made of tightly packed molecules will sink in low density liquid. The opposite will happen for the objects, which are made up of loosely packed molecules. I have done an experiment in my home with an egg. I have observed that egg placed in the fresh water sink immediately but it floated in saltwater. I have done another experiment with metallic spoon. In this experiment, also spoon floated in the salt water but sank in tap water. The next experiment was on metallic pen. The result of this experiment also gave the same result. Metallic pen floated in salt water but sink in the fresh water. Throughout the world, water and wind, usually erode about 20 billion tones of rock debris and dirt from the continents and deposit into the seafloor. In average, there is 1300 feet of sediment in beneath the sea. Many processes accelerate this continuous adding of salt and other chemicals into the seas and oceans. Most common chemicals are sodium (Na) and chlorine (Cl) which are dissolved in the water easily. These chemicals are the basic constituents of salt that is sodium chloride. According to research, ocean restrains around 1370 million cubic kilometers of water and around 14700 trillion tons of sodium. Every year around 457 million tones of sodium dump into the ocean through river transportation, land surface erosion etc. Sometimes in some specific area Volcanic dust also dumps some amount of sodium into the water. Erosion of