change is being observed around the world by not just scientist but by all of us. All of the sea levels are rising at a fast pace because of how fast the ice glaciers are melting‚ the arctic sea ice is melting‚ permafrost and expansion of warmer seawater‚ that is also causing serious threats for all sea creatures and which also includes the death of the world’s coral reefs. The warmer climate change can also be held responsible for the extreme droughts that have been happening that causes a higher
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is no record of rainwater pollution in Bangladesh. Surface water pollution is very common in Dhaka and is caused due to human activities. The sources of surface water pollution are industrial and urban wastes‚ agrochemicals and sewerage wastes and seawater intrusion. Groundwater contamination is the degradation of natural water quality as a result of human activities‚ and pollution occurs when contaminant concentration levels restrict the potential use of groundwater. Ground water is not directly
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responsible for the salinity of the ocean and of the extracellular fluid of many multicellular organisms. As the major ingredient in edible salt‚ it is commonly used as a condiment and food preservative. /Salt is currently mass-produced by evaporation of seawater or brine from brine wells and salt lakes. Mining of rock salt is also a major source. China is the world’s main supplier of salt.[7] In 2010‚ world production was estimated at 270 million tons‚ the top five producers (in million tons) being China
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Green Sea Turtles Green Sea Turtles are very unique‚ kind and harmless creatures. Although‚ some people do not understand their harmfulness. Many people‚ such as poachers‚ want to kill sea turtles for their meat‚ eggs and shell. Fortunately‚ people have started organizations that help and track sea turtles. Green sea turtles‚ also known as Pacific Green Sea Turtles‚ Black Sea Turtles and Chelonia Mydas‚ their scientific name‚ belong to a scientific group called Cheloniidae‚ a group of sea turtles
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gradient pushes relatively cool‚ low-salinity water from the Atlantic across the basin; it warms and becomes saltier as it travels east‚ then sinks in the region of the Levant and circulates westward‚ to spill over the Strait of Gibraltar. Thus‚ seawater flow is eastward in the Strait’s surface waters‚ and westward below; once in the open ocean‚ this chemically-distinct "Mediterranean Intermediate Water" can persist thousands of kilometers away from its source. The geology of the Mediterranean
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Is climate change a ‘ticking time bomb’? It is no secret to anyone that our planet is warming but what many of us don’t know is why and perhaps more importantly the consequences it poses. The roots of our problem lie in the form of a simple molecular compound‚ carbon dioxide. In 1870 the amount of carbon dioxide in the atmosphere was 290 parts per million. 144 years later‚ to this very date‚ it has risen to over 400 parts per million. But why does this cause a problem you may ask‚ well it is
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In the past‚ we’ve seen incidents where large hordes of people march in unison‚ carry banners and shout slogans to bring attention to an issue. These incidents are known as civil disobediences‚ an act performed by a group of people‚ usually civilians‚ to protest a law imposed on them by a governing body or fight for something they believe in. This act differs from something like a violent protest or a revolution is that civil disobediences firstly put emphasis on the rule of law while disobeying
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Imagine life with no telephones. No way to connect to faraway relatives or friends‚ except old letters‚ and that’s all. Without Alexander Graham Bell‚ telephones may never have happened. No one could just pull out a phone‚ but had to write letters that took days‚ even weeks to send. This made communication from far distances extremely difficult. Bell changed our world‚ and he lived an interesting life worth learning about. Alexander Graham Bell lived a strange childhood compared to many modern day
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The geology of carboniferous of the Midland Valley of Scotland Research Aims This essay will cover the basic geology of the Midland Valley‚ the changes in structure and volcano activities during the carboniferous period. General introduction of the Midland Valley The carboniferous is a period between 290 and 360 million years ago(Ref 1‚p.8‚Scotland Through Time). The Midland Valley was covered with lots of rainforest and numerous of coral reefs flourished in the tropical seas. Volcanos eruptions
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Since the start of the space age‚ more and more littering has occurred in orbits near Earth‚ often because the intentional discarding of lens caps‚ packing material‚ fuel tanks‚ and payload covers. (A) more and more littering has occurred in orbits near Earth‚ often because (B) orbits near Earth have become more and more littered‚ often from (C) orbits near Earth became littered more and more‚ often resulting from (D) there have been more and more littering of orbits near Earth‚ often because of
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