Marine Biology Essays - Aquatic Ecology, Ocean Pollution

Marine Biology Aquarium Assignment A major source of coastal pollutants, human sewage fouls bays and beaches with both toxic and nontoxic pollutants. Although billions of dollars have been invested in sewage treatment plants to treat wastewater, new and growing coastal communities have increased the amount of discharge into oceans and estuaries. The United States Office of Technology Assessment has identified thirteen hundred major industries and six hundred municipal wastewater treatment plants that discharge into coastal waters of the United States. Many toxic substances enter the sea through the sewer systems, but others originate as industrial discharges. For many toxic substances, we do not yet know how to determine their extent or fate in the marine environment or to evaluate their effects on marine life. Some of the better-known trace metals and toxic chemicals include mercury, copper, lead, and chlorinated hydrocarbons. Chlorinated hydrocarbons, synthetic chlorine-containing compounds, are created for use as pesticides or are by-products of the manufacture of plastics. Oil is a very dangerous thing when it comes to oil spills into the ocean. These catastrophic oil spills engender a concern for the marine environment as no invisible containment can. Spilled oil floats on seawater and provides a constant reminder of its presence until it is washed ashore, sinks, or evaporates. Large volumes of oil suffocate benthic organisms by clogging their gills and filtering structures or fouling their digestive tracts. Marine birds and mammals suffer heavily as their feathers or fur become oil soaked and matter, and they lose insulation and buoyancy. Until recently, marine debris was considered to be of minor importance when compared to other pollutants. Problems caused by marine debris, however may rival or exceed those resulting from some better known pollutants, including oil. By definition, marine debris is any manufactured object discarded in the marine environment. When dumped, it may sink to the sea floor, remain suspended at mid-depths, or float at the surface and eventually be carried ashore by winds and waves. Plastics constitute as great an environmental threat as all the other kinds of debris, combined. Although plastics may break up into smaller pieces, they degrade much more slowly than most other kinds of debris, and most plastics float. Concentrations of plastics tend to be highest in the Northern Hemisphere, where vessel traffic is the heaviest, where most plastics manufacturers and fabricators are located, and where more intensive recreational use is made of beaches and coastal waters. Hopefully, as we approach the twenty-first century, we can learn to leave some old and wasteful habits behind. It will not be easy or simple, but each one of us must develop a sense of stewardship toward the world ocean and its

Sample of a Simple Essay About My Pet

Sample of a Simple Essay About My PetWhen you have a writing sample of a simple essay about my pet, it will help you learn how to write the essay for your pet. This sample is not going to be the typical research essay. Instead, this sample is going to be a reflection of your pet.You can think of this sample as the equivalent of your pet speaking to you. After you read this sample, you may notice something unusual. For example, you may discover that your pet uses certain words in a particular way. In addition, you may notice that you are making comments and observations about your pet that seem more like a description than an essay.Your sample essay about your pet should include a reflection on the state of your pet. It should also include a request for support or forgiveness. In order to do this, you will need to discuss what your pet means to you. If you want to show your pet that you understand, then you will need to show him or her that you have changed.Since your pet has been fee ling strange all the time, you may need to come up with a well thought out definition of your pet. It is also wise to make sure that you make clear that this definition should be used by the person reading the essay. The easiest way to do this is to use the word 'puppy' instead of 'pet.' This will show that your pet is like a puppy, which will be clear.Next, you will need to talk about your relationship with your pet. Most of the time, people will not do this, because they simply do not know how to do this. You should talk about your desire to love your pet unconditionally.You should also talk about your desire to give your pet his or her space. This is necessary in order to show your pet that you are willing to respect his or her space. You may also need to consider your pet's feelings about being left alone in the house. If you want to show your pet that you are willing to give him or her some freedom, then you will need to make sure that you take care of yourself in order to be a ble to let your pet have his or her freedom.Finally, you will need to talk about the fact that you understand that your pet was abandoned. The last thing you want to do is insult your pet when you realize that you did not treat him or her with proper respect. By talking about the circumstances that led to your pet's abandonment, you will be able to see that your pet is not a bad person, but a pet who needs help.The basic response is to look at your pet in a new light. By reflecting on your pet and talking about the state of your pet, you will be able to write a simple essay about your pet and be able to learn how to write an essay about your pet.