species over others‚ and is likely to cause severe reductions in water quality. In aquatic environments‚ enhanced growth of choking aquatic vegetation or algal blooms disrupt normal functioning of the ecosystem‚ causing problems such as a lack of oxygen in the water‚ needed for fish and other aquatic life to survive. The water then becomes cloudy‚ colored a shade of green‚ yellow‚ brown‚ or red. Soil Acidification When ammonia reaches the soil surface‚ it usually reacts with water in the soil
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light intensity affect the rate of photosynthesis? Poorly Pondweed Questions 1) How does light intensity affect the rate of photosynthesis? 2) How does temperature affect the rate of photosynthesis? sunlight carbon dioxide + water glucose + oxygen chlorophyll sunlight 6CO2 + 6H2O àààààà C6H12O6 + 602 chlorophyll Prediction I predict that the more intense the light‚ the higher the rate of photosynthesis. To photosynthesise‚ plants need light. It provides the energy for the process to happen
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METABOLISM Lab 5 BCEM 341 – Winter 2014 Nebojsa Kuljic 10066717 Partner: Kendra Skalyn B02 Introduction Cells of all organisms can obtain energy through the combustion of sugars‚ either in the presence of oxygen (Aerobically) or without oxygen (Anaerobically). The purpose of this experiment was to perform a quantitative investigation of the differences between Anaerobic and Aerobic metabolism using pea seedlings and yeast organisms [1]. Aerobically‚ sugars such as glucose
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Chemistry I Chapter 8 Review Problems Part I Using the factor label method‚ neatly and clearly show all work. Answers are to include the unit‚ be in correct number of significant figures. If the answers are less than 1.0 or greater than 10‚ they are to be written in and be in correct scientific notation. Box your final answer. Mass/Mole Problems 1. Determine the molar masses of the following compounds: a. dinitrogen pentoxide c. sodium carbonate b. ammonium
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atmospheric air directly into the lungs. g. Lungs: The main organ of the respiratory system is lungs. Lungs are the site in body where oxygen is taken into and carbon dioxide is expelled out. The red blood cells present in the blood picks up the oxygen in the lungs and carry and distribute the oxygen to all body cells that need it. The red blood cells donate the oxygen to the cells and picks up the carbon dioxide produced by the cells. h. Alveolus: Alveolus is
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OZONE-LAYER DEPLETION AND NATURAL RESOURCES INTRODUCTION Sometime ago‚ a warning endorsed by more than 1‚600 of the world’s most distinguished scientists‚ including 102 Nobel Prize winner states in part: Human being and the natural world are on collision course. Human activities inflict harsh and often irreversible damaged on the environment and critical resources. If not checked‚ many of our current practices put as serious risk the future that we wish for human society and the plant
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GCSE Biology B General Certificate of Secondary Education Unit B731/02: Modules B1‚ B2‚ B3 (Higher Tier) Mark Scheme for June 2012 Oxford Cambridge and RSA Examinations OCR (Oxford Cambridge and RSA) is a leading UK awarding body‚ providing a wide range of qualifications to meet the needs of candidates of all ages and abilities. OCR qualifications include AS/A Levels‚ Diplomas‚ GCSEs‚ OCR Nationals‚ Functional Skills‚ Key Skills‚ Entry Level qualifications‚ NVQs and vocational qualifications
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individuals‚ community‚ or even manufactured products * One in developed country has higher ecological footprint than one in developing country because of more resource consume and waste production * Eutrophication * Excessive algae growth and oxygen deficiency * Caused by elevated levels of phosphates and nitrates (nutrients for plants to grow) * Correlation * Relationship between one event and another * Casual relationship * Cause and effect (one event produces another event)
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the products water and oxygen. To observe this catalase activity I used small amounts of liver samples slightly smaller than the size of a pea to see the reaction when hydrogen peroxide is added to it. In this experiment I exposed the liver samples in three different temperature environments: 3°c‚ 22°c‚ and 75°c. I wanted to measure how much water and oxygen is produced in each environment by measuring the visible bubbles in each test tube. I predicted that water and oxygen production would occur
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Prelim Past questions – Chemical Earth. 1. What is the systematic name for a compound with the formula Cu2SO4? (A) (B) (C) (D) 3. In which compound do all atoms have the same electronic configuration? (A) (B) (C) (D) 4. Copper sulfide Copper (I) sulfate Copper (II) sulfate Copper disulfate LiF NaCl MgF2 NCl3 Identify the property which decreases across each row of the Periodic Table. (A) (B) (C) (D) Melting point Ionisation energy Valency Atomic radius
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