1. The International Convention about wildlife protection is: Convention on Biological Diversity Convention on International Trade in Endangered Species‚ CITES Framework Convention on Climate Change Convention on Ozone Layer Protection Convention on Combat Desertification 2. The International Convention on control of persistent organic pollutants is: Stockholm convention Montreal protocol Convention on Biodiversity Kyoto protocol Convention on Combat Desertification 3. The International
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Control measures to overcome environmental problems This is a list of environmental issues. As such they relate to the anthropogenic effects on the natural environment. Climate change — Global warming • Global dimming • Fossil fuels • Sea level rise • Greenhouse gas • Ocean acidification • Shutdown of thermohaline circulation • Environmental impact of the coal industry • Urban Heat Islands Conservation — Species extinction • Pollinator decline • Coral bleaching • Holocene extinction • Invasive
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Chapter Outline – Chapter 8 – Environmental Health and Toxicology I. Risk‚ Probability‚ and Hazards Risks and hazards—some avoidable‚ some not—compromise everyday life. A. A risk is a measure of your likelihood of suffering harm from a hazard. 1. Such a hazard may cause injury‚ disease‚ economic loss‚ or environmental damage. 2. Risk assessment is projected as a probability: a mathematical statement about how likely it is that harm will result from a hazard. It gives the
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p IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI Biology Higher level and standard level Specimen paper 1s‚ 2s and 3s For first examinations in 2009 http://www.xtremepapers.net CONTENTS Biology higher level paper 1 specimen paper Biology higher level paper 1 specimen markscheme Biology higher level paper 2 specimen paper Biology higher level paper 2 specimen markscheme Biology higher level paper 3 specimen paper Biology higher level paper 3 specimen markscheme
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1 Measuring and calculating equilibrium constants Clearly‚ if the concentrations or pressures of all the components of a reaction are known‚ then the value of K can be found by simple substitution. Observing individual concentrations or partial pressures directly may be not always be practical‚ however. If one of the components is colored‚ the extent to which it absorbs light of an appropriate wavelength may serve as an index of its concentration. Pressure measurements are ordinarily able to measure
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Unit 4 Ecosystems Background Introduction The abundance of a species and species diversity affect how natural resources are processed within an ecosystem. This pattern of processing contributes to functional and compositional characteristics of an ecosystem. But many ecosystems around the world are currently experiencing significant changes in species composition‚ abundance‚ and diversity due to the influence of human activity. These changes have‚ more often than not‚ led to a reduction in species
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Paper 1 Section A |Terms with *‚ mark deduction for spelling error. | |Marks | |1 | |D→E→B→C→A |(2) | | | |(1) (1) | | |2 |(a) |During the favourable season more secondary xylem cells are formed and they are larger
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take it up and animals may take it in when they breathe. If they do not excrete or egest it‚ it will accumulate in their bodies over time. Its concentration will therefore build up until eventually it may be high enough to kill the organism. Biomagnification: If a herbivore eats a plant which has chemicals in its tissues‚ the herbivore will take in the chemical. However‚ because the herbivore will eat many plants the concentration of the chemical in the herbivore will be higher than the plant. If
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Study Sheet for Biology SB4: Chapter 3 Concept Checks Concept Check 3.1: ~Animal Behavior: what an animal does as it interacts with its environment. ~ Immediate Cause: explanation of an organism’s behavior based on its immediate interactions with the environment ~Ultimate Cause: explanation of an organism’s behavior based on its evolutionary adaptations 1. Why do the whales blow bubbles when they touch the surface? What allows the whales to blow bubbles when they reach the surface? 2. Tinbergen’s
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POLLUTION Pollution is the introduction of contaminants into the natural environment that causes adverse change. Pollution can take the form of chemical substances or energy‚ such as noise‚ heat or light. Pollutants‚ the components of pollution‚ can be either foreign substances/energies or naturally occurring contaminants. Pollution is often classed as point source or nonpoint source pollution. Forms of pollution The major forms of pollution are listed below along with the particular contaminant
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