As far as we know, Earth is the only planet that has life. But since humans developed cities and industries, the modern lifestyle has changed.
Essay on Marine Pollution: Sources, Effects and Control Article shared by: Sources, Effects and Control! Marine pollution is defined as the introduction Marine pollution essay substances to the marine environment directly or indirectly by man resulting in adverse effects such as hazardous to human health, obstruction of marine activities and lowering the quality of sea water.
Sources of Marine Pollution: Municipal waste and sewage from residences and hotels in coastal towns are directly discharged into sea. Pesticides and fertilizers from agriculture which are washed off by rain enter water courses and finally to sea.
India is estimated to use 55, tons of pesticides annually and about 25 percent of it is carried to-ocean. Petroleum and oil washed off from Marine pollution essay normally enter sewage system and finally into seas. Ship accidents and accidental spillage at sea can therefore be very damaging to the marine environment.
Off shore oil exploration also pollute the sea water to a large extent, f. All ships periodic dry docking servicing; cleaning the hulls etc. Pollution due to organic wastes: When O2 concentration falls 1.
Pollution due to oil: Crude oil is transported by sea after a tanker has unloaded its cargo of oil; it has to take on sea water ballast for return journey. This ballast water is stored in cargo compartments that previously contained oil. During unloading of cargo certain amount of oil remains clinging to the walls of container and this may amount to t in a ,t tankers.
The ballast water thus contaminated with oil. When fresh crag of oil is to be loaded these compartments are clean with water which discharges the dirty ballast along with oil into sea. In the natural process, a large no. Sometimes this can results in major disasters.
Volcanic eruptions in the sea. Deep sea mining is a relatively new mineral retrieval process that takes place on the ocean floor. The vents create sulfide deposits, which contain precious metals such as silver, gold, copper, manganese, cobalt, and zinc.
These raise questions about environment damage to surrounding areas.
Removal of parts of the sea floor will result in disturbances to the benthic layer, and habitat of benthic organisms. Effects of Marine Pollution: These are phytoplankton blooms because of which the whole area is discolored.
Commercially important marine species are also killed due to clogging of gills and other structures. When oil is spilled on the sea, it spreads over the surface of the water to form a thin film called as oil slick.
This damages marine life to a large extent. Commercial damage to fish by tainting which gives unpleasant flavor to fish and sea food reduces market values of sea food and causes death of birds through its effect on feathers.
Birds often clean their plumage by pruning and in the process consume oil which can lead to intestinal, renal and liver failure.
For salt marshy plants oil slick can affect the flowering, fruiting and germination. Organic waste addition results in end products such as hydrogen sulphide, ammonia and methane which are toxic to many organisms.
This process results in the formation of an anoxic zone which is low in its oxygen content; from which most life disappears except for anaerobic microorganisms and renders the water foul smelling.
The coral reefs are the productive ecosystems offer many benefits to people. These coral reefs are threatened by a the sediments from deforestation carried by the runoffs, b the agricultural and industrial chemicals reaching through river discharges.
To mention an example. River Ganga is estimated to carry 1.Below is a model IELTS writing task 2 answer for an essay question reported in the IELTS test this month. The question was reported in the test on March 3rd. You will also find on this page: a link to learn plastic bag facts; useful vocabulary for this topic.
A short film followed artist Chris Jordan to investigate the thousands of albatrosses dying from ingestion of plastic pollution from the Pacific Garbage Patch. marine pollution essaysThe sea is indispensable to life on earth and experiencing serious environmental problems today.
Originally nature had the power to clean itself of pollutants to a certain degree. However, the amount of the pollutants discharged by human beings has reached a level which nature.
Essay on Marine Pollution: Sources, Effects and Control! Marine pollution is defined as the introduction of substances to the marine environment directly or indirectly by man resulting in adverse effects such as hazardous to human health, obstruction of marine activities and lowering the quality of sea water.
Water Pollution and Drinking Water Quality - All around the world, countries are fighting to keep their drinking water clean. Whether it’s streams, rivers, or lakes, countries have taken great measures to maintain high quality drinking water for both human consumption and animal consumption.
Nanomaterials, an international, peer-reviewed Open Access journal. The development of excellent full-spectrum photocatalysts is of vital significance to its practical application in environmental remediation.