w. oxygen x. carbon dioxide y. hydrogen sulfide z. potassium sulfate 35. What element is most closely correlated with Eutrophication? w. Sulfur x. Carbon y. Phosphorus z. Nitrogen 36. Which term represents the following phrase: A reduced nutrient availability which leads to low productivity. w. Ecological efficiency x. Oligotrophication y. Primary production z. Eutrophication 37. Which of the following phrases best represents the definition of standing crop? w. Total biomass in a specified area
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badgering my Biology teachers in school with questions like why our old oak tree’ had to fall prey to a dreadful parasite called loranthus;why the local fish market had shut down mysteriously in 1993 owing to some ungraspable phenomenon termed "eutrophication" saw to it that I was offered‚ with all dignity‚ a permanent membership to the highly esteemed Naturalists’ Society at a tender age of thirteen to "quell the curiosity of this pesky questioner (as my worthy seniors had put it)." This initial
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produce less solid‚ atmospheric‚ and waterborne waste than a single paper bag. It found paper bags to have a more severe environmental impact in 7 out of the 8 impact categories. Paper bags were found to be particularly harmful with respect to eutrophication of water bodies‚ water consumption‚ greenhouse gas emissions and production of solid waste. Plastic bag VS Paper bag 1. The paper bag unit is about twice as energy intensive as a plastic bag unit. Paper 5 2. The weight
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• Know diagram • Nitrogen cycle • Know processes: Fixation‚ ammonification‚ nitrification‚ denitrification • Phosphorus cycle • Know diagram • Human impacts on nutrient cycles • Fertilizers and Eutrophication Effects of Global Change and Elevated CO2 • Global warming • Domino effect with ΔN content • Community shift with ΔWUE Trophic interactions and energy flow • Energy and work • Trophic terminology (types of
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AIR POLLUTION What is Air Pollution? Pollution is now a common place term‚ that our ears are attuned to. We hear about the various forms of pollution and read about it through the mass media. Air pollution is one such form that refers to the contamination of the air‚ irrespective of indoors or outside. A physical‚ biological or chemical alteration to the air in the atmosphere can be termed as pollution. It occurs when any harmful gases‚ dust‚ smoke enters into the atmosphere and makes it difficult
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Explain how human activity can damage the environment (P1) Overcrowding: Overcrowding in houses can arise from several causes‚ and the physical and psychological effects on people living in overcrowded conditions can be quite severe. Overcrowding poses serious direct and indirect health risks to all segments of the population‚ particularly the elderly‚ young children‚ and the disabled. Overcrowding results in insufficient ventilation in homes‚ causing or exacerbating respiratory illness. Susceptibility
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the chlorophyll a criteria. For example‚ reservoirs associated with “run-of-the-river” dams typically have small hydraulic head‚ limited storage area and short retention times and are less likely to be susceptible to conditions that can lead to eutrophication or promote excessive algal growth. In contrast‚ reservoirs associated with larger dams‚ such as storage or hydroelectric dams‚ are more likely to have longer retention times‚ providing a greater potential for incoming nutrients to stimulate increased
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ENVIRONMENTAL SCIENCE (S1 1415) RECOMMENDED ACTIVITES & PROJECT 1. Compare your family size and resource consumption to that of your friends’ family. Make a table of the class data and generate some statistics (e.g.‚ average family size‚ average water usage‚ and average number of household cars). Discuss all aspects of the findings. 2. “Adopt” a country and investigate various aspects of the nation’s physical‚ population‚ economic‚ social‚ political‚ and other characteristics as well as lifestyle
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American Prairies: Change in Ecosystem Structure and Function Introduction Stretching approximately two million acres of land‚ the North American Prairies cover a large portion of the continent. From Montana to Oklahoma to Colorado and to the provinces of Alberta‚ Manitoba‚ and Saskatchewan in Canada‚ the Great Plains‚ having moderate temperatures and suitable rainfall conditions‚ provide a valuable resource to society. Due to the expanse of land and the varying habitats within the prairies ecosystem
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Threats to Marine Biodiversity Biodiversity’ is the name for the variety of all biological life. This includes plants‚ animals‚ fungi and microorganisms‚ the genes they contain and the ecosystems they live in. ’Marine biodiversity’ refers to this variety of life in coastal and ocean environments. Biodiversity loss has become one of the greatest environmental concerns of the last century‚ owing to increasing pressure on the environment by humans combined with the realisation that our activities
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