water flow (fast/slow) Salinity Freshwater: streams‚ rivers‚ lakes‚ wetlands Saltwater/ marine: estuaries‚ coral reefs‚ open ocean Rivers & Streams (Lotic= flowing) fast vs. slow water and air mix dissolved O2 rates correlate Lakes & Ponds (Lentic= standing water) littoral zone- shallow and near shore‚ very productive and morebiodiversity limnetic zone- where photosynthesis take place...very productive profundal zone- aphotic zone benthic zone- is the very bottom swamps- have emerged
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there is still no final answer. This article addresses three of them. One‚ that helps lower Manhattan‚ is to marsh-ify the edges and streets of the city to deal with flooding in a robust way. Another way is for the Brooklyn area‚ to make artificial shellfish nurseries to filter the water and to mitigate onrushing tides. The last proposal is for the neighborhood of Staten Island. The idea is to construct a damlike structure with suspension towers that would span Arthur Kill‚ a tidal straight that separates
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Thesis Statement Water pollution has had devastating effects on the environment‚ which include irreversible effects to the ocean’s ecosystem‚ health problems and abnormal conditions. interference of the ocean’s ecosystem - Plastic storage bags can kill animals in the oceans like dolphins‚ turtles and whales. It is easy for wildlife to swallow and eventually causes death. * Over 1.5 billion tons of plastic water bottles end up in US landfills each year. It takes over 300 years to degrade
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Aquatic Biome! ! The aquatic biome makes up the largest part of the biosphere‚ covering nearly 75% of the Earth’s surface and consists of the freshwater biome and the marine biome. Freshwater regions consist of ponds‚ lakes‚ streams‚ rivers‚ wetlands and marine regions include oceans‚ coral reefs and estuaries. Marine biomes generally have salt concentrations that average 3%‚ whereas freshwater biomes are usually characterised by a salt concentration of less than 0.1%. The aquatic biome is probably
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ocean). There are different types of freshwater regions: * Ponds and lakes * Streams and rivers * WetlandsPonds and lakes These regions range in size from just a few square meters to thousands of square kilometers. Scattered throughout the earth‚ several are remnants from the Pleistocene glaciation. Many ponds are seasonal‚ lasting just a couple of months (such as sessile pools) while lakes may exist for hundreds of years or more. Ponds and lakes may have limited species diversity since they are
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A keystone species is a species that has a disproportionate effect on its environment relative to its abundance. Such an organism plays a role in its ecosystem that is analogous to the role of a keystone in an arch. While the keystone feels the least pressure of any of the stones in an arch‚ the arch still collapses without it. Similarly‚ an ecosystem may experience a dramatic shift if a keystone species is removed‚ even though that species was a small part of the ecosystem by measures of biomass
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Saman: thankyou salman and yumna Aslam o aliekum every one! Maheen: good morning lovely audience out there! Saman: I hope you guys are enjoying THIS COLORFUL EVENT! As salman has aready told we’re here to carry on the rest of the event! AHMED ABDULLAH Maheen: we all know larko ki cricket team main aik esa student hai‚ who is very very very obedient in class‚ and you can actually see the respect for the teachers in his eyes! Saman: the next title is for one that person who himself sets an admiring
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aquatic invertebrate animals and groups have common names compounded with the term fish‚ which are unrelated to true fish. For example cuttlefish (cephalopod mollusks‚ relatives of the octopus)‚ jellyfish (coelenterates)‚ starfish (echinoderms)‚ and shellfish (mollusks such as the oyster and clam)‚ and the crustacean arthropods such as the crayfish. The bony fishes are divided into two groups: the fleshy-finned fish (Crossopterygii) and the ray-finned fish (Actinopterygii). The latter group includes
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189 Torrib Tabaquite Road‚ New Grant Princes Town Trinidad‚ WI Monday‚ 22 March‚ 2010 My Dearest Aunty Suzette‚ Hello. I hope all is well with you. Let me apologise to you for not writing for so long. I have been occupied with school. I am writing you‚ as you are the Water Conservation campaign manager for the UN‚ to persuade you to come to Trinidad to run a campaigning like the one you coordinated in Barbados. Sometimes I live in fear. Trinidad goes through a lot of tribulations- bad
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tea‚ millet‚ barley‚ oilseed‚ pork‚ and fish. Major non-food crops‚ including cotton‚ other fibers‚ and oilseeds‚ furnish China with a small proportion of its foreign trade revenue. Agricultural exports‚ such as vegetables and fruits‚ fish and shellfish‚ grain and meat products‚ are exported to Hong Kong. Yields are high because of intensive cultivation‚ for example‚ China’s cropland area is only 75% of the U.S. total‚ but China still produces about 30% more crops and livestock than the United States
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