A Brief Note On Ocean Water And Fresh Water

The narrator in the first chapter is Ruth McBride. Ruth is addressing her son James McBride because he is interviewing Ruth.“I don't remember the name of the town where I was born, but I do remember my jewish name: Ruchel Dwajra Zylska. My parents got rid of that name when we came to America…” pg 1

I examine how rising or falling tide can affect the water level of Corte Madera Salt Marsh in this report. The data is from Wednesday (June 19th) and Thursday (June 20th). My hypothesis is that tide and water level have positive relationship. From the result, I learn that the water level and tide have positive relationship. However, when tide changes its direction, the water level is likely to stay or little change.

(Salton Sea Symposium, 1998) However , the condition of the Sea has drastically changed and so has the amount of healthy living organisms in the Sea. By the 1980�s the water level rose greatly and gave way to abandoned businesses, deteriorating structures and empty beaches. The above was due to the fact that evaporation is the only outlet to the Salton Sea , in fact 1.35 million acre feet of water is lost each year , thus increasing its salinity even more. The salinity of the Salton Sea has increased to 45,000 parts per thousand or 45 PPT; the Pacific Ocean is currently 35 PPT.

Seawater naturally has a pH of around 8.2, therefore being alkaline. However, as oceans absorb about 30% of the extra Carbon Dioxide in the atmosphere there are changes occurring within the water. The change is caused over time and makes the water less alkaline. Scientists have estimated that since the industrial revolution the pH has dropped 0.1 to 8.1. It is predicted that the pH could fal to about 7.8 by

5) Sources of the salt found in water: Earth’s crust, Earth’s atmosphere, gases, magmatic material and volcanic water. The input regulated by providing ions and recycling materials.

As fresh water drains from land, it mixes with salt water from an ocean, and this water is called an

The earth’s oceans are overfished. Nearly 80 percent of commercial fisheries are overexploited and some experts believe that global fisheries will completely collapse by 2048 (Barkin page 1). While these are just facts that tell the worst-case scenario, they should be alarms that spark change in the way we fish. This paper, however, will specifically target overfishing in the Grand Banks in Newfoundland, Canada, and analyze its impact on Earth, its Environment and Humanity. Over fishing is simply when fishermen catch more fish than are being reproduced. Eventually the stock of fish in the environment will be completely depleted. That is exactly what happened off the shores of Newfoundland in 1992. With Cod fishing at an all time high, the Canadian government discovered that the Cod population was almost exhausted. New technology and poor decision-making led to the complete destruction of the cod population in the Grand Banks and this is a mistake that we should never repeat.

When the water is so contaminated that you cannot drink it, what could you do to get a pure glass of H2O? Students taking Western Kentucky University (WKU) Dual-Credit “SPAN Chemistry” class at Metcalfe County High School (MCHS) completed a lab investigation of the distillation of contaminated water.

Ocean water desalination is the process of making ocean water drinkable. Seventy-one percent of the world is covered in ocean water, and a significant number of people in the world live within thirty miles of an ocean. Despite the abundance of resources, a large portion of the energy and materials found in the ocean remains largely untouched. Desalination of ocean water is the only solution for countries with a limited availability of existing sources of drinking. Areas such as parts of the Middle East and Africa, where water is scarce, may use outside shipments of fresh water and techniques to purify the abundant ocean water in order to survive. Some areas in South America where water may be abundant, could be unsafe to drink due to the biological

1. What is the composition of seawater? The salinity of seawater ranges from 3.3 to 3.7%. When seawater evaporates it leaves behind sodium chloride, better known as table salt. The other components of seawater are acquired through various methods. One of which is weathering. Chemical weathering of rock releases soluble such as salts of sodium, potassium, and sulfur.

Waters move extremely slowly, 10cm/s at its fastest however, it moves a very large amount of water and information from radiocarbon dating shows that the whole of the ocean deep waters are over turned around every 600 years. The density is controlled by the temperature of the water (thermo) and the salt content (haline). Water gets colder during heat loss to the atmosphere, especially at high latitudes, and consequently becomes denser. Conversely, water gets warmer when it is heated by arriving solar energy, specifically at low latitudes, and consequently becomes less dense. Water becomes saltier if evaporation rates are high as evaporation favours pure water molecules (as they are less dense) leaving behind saline and thus more dense waters. This leads to sinking of waters at high latitudes and upwelling of waters at lower latitudes, both of which are fed by horizontal currents (Gordon, 1986). However, water becomes less saline

Today I learned that more than 70% of the earth is covered by Oceans, which contain 97% of all the water on earth. Then I found out that the Human Body is 65 percent H2O. That’s when I discovered that ocean water is almost 3 percent salt. Aha I remembered tears and perspiration are salty, too. Now I wonder how salty my bodys water is compared to water in the pacific ocean.

1)The two most Frequent ions that are in the seawater are chloride and sodium.When they mix together in the seawater, they make 90 percent of the oceans dissolved ions.The frequent ions Sodium and chloride are ‘salty.’In the seawater the concentrations of the salt are about 35 parts per thousand.The weight of the seawater are about 3.5 percent and that comes from dissolved salts and in cubic miles that would be 12 million tons.Did you know that scientist estimated that if all the salt were to be taken out of the water and spread on the earth’s land,then it will form a layer that is more than 500 feet thick and a 40-story office building.

Ocean pollution is one of the most urgent issues in our world today. The ocean is crucial to our ecosystem and it is being severely damaged at an alarmingly increasing rate. In this paper I will educate about the role the ocean plays in our beautiful Earth, why it is being so widely ignored and dismissed, the causes of pollution, and its effects on animals and humans alike.

“Although ocean water tastes like water with table salt (sodium chloride) dissolved in it, it is a lot more complex than that” (Friese 33). Pure sea water contains a vast amount of dissolved chemicals. It contains everything from sodium chloride to trace amounts of silver and gold. Although the inhabitants of a marine reef aquarium are not going to be effected if the water does not contain gold, they will not live long if all that is added is table salt (Friese 33). Marine salt mixes contain a similar collection of elements that are found in natural seawater.