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. Air pollution has always accompanied civilizations. Pollution started from the prehistoric times when man created
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Air Bags (Lesson Plan) (Exploring the Science of Automotive Air Bags) Suggested Grade Level 8-9 Standard Statements (Pennsylvania) 3.1.10A Discriminate among the concepts of systems‚ subsystems‚ feedback‚ and control in solving technological problems. 3.1.10E Describe patterns of change in nature‚ physical and man made systems. 3.2.10B Apply the elements of scientific inquiry to solve problems. 3.2.10C Identify and apply the technological design process to solve problems
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AP Human Geography Chapter 2 Study Guide Terms: · population density - a measurement of the number of people per given unit of land · arithmetic population density - the population of a country or region expressed as an average per unit area · physiologic population density - the number of people per unit area of arable land · population distribution - description of locations on the Earth’s surface where populations live · dot maps - maps where one dot represents a certain number of a phenomenon
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1. What is the commonly accepted age of Earth? a. 4.6 million years b. 46 million years c. 4.6 billion years d. 46 billion years 2. Which of the following was not a source of heat for the early Earth? a. meteor bombardment b. gravitational contraction c. radioactivity d. hydrothermal energy 3. What are small asteroids called? a. comets b. meteoroids c. cratons d. microcontinents 4. What is the process by which a planet becomes
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ENVIRONMENTAL POLLUTION Efforts to improve the standard of living for humans--through the control of nature and the development of new products--have also resulted in the pollution‚ or contamination‚ of the environment. Much of the world’s air‚ water‚ and land is now partially poisoned by chemical wastes. Some places have become uninhabitable. This pollution exposes people all around the globe to new risks from disease. Many species of plants and animals have become endangered or are now extinct
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Biology Major substances: Organic compounds – are compounds that contain carbon and were originally made by living things e.g. carbohydrates‚ lipids‚ proteins‚ nucleic acids Inorganic compounds – are compounds do not contain carbon as a main element Organic compounds | Composition | Function | Proteins | Carbon‚ hydrogen‚ oxygen and nitrogen | Used in the structure‚ storage‚ movement and transport of cells for growth and repair. | Lipids | Carbon‚ hydrogen and oxygen | Stores energy
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Money and Politics (Parties‚ Interest Groups‚ Elections‚ Public Opinion & the Media) VOCAB issue advocacy: unlimited and undisclosed spending by an individual or group on communications that do not use words like “vote for” or “vote against‚” although much of this activity is actually about electing or defeating candidates factions: A term used by James Madison and other founders of this country to refer to political parties as well as what we now call special interests or interest groups.
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WHAT IS ENVIRONMENT POLLUTION? The most appropriate definition of environmental pollution would be the introduction of different harmful pollutants into certain environment that make this environment unhealthy to live in. The most common pollutants are usually chemicals‚ garbage‚ and waste water. Environmental pollution is happening in many parts of the world‚ especially in form of air and water pollution. The best example for air pollution are some of China ’s cities‚ including capital Beijing
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: Uniformity and Diversity Study Guide #1 for (October 2007 Presentation) Dr. Rex Sharman‚ designer ETPU OUHK Professor K. C. Ho‚ course team leader Maggie Wong Course Coordinator of S204 Contents Section # 1. Page Introduction : how S204 will fit into Environmental Studies at the Open University of Hong Kong 2. Themes and aims : core concepts and objectives of S204 3. Course organization and philosophy 4. Scope of Study Guide #1 5. Books : Supplied and
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Chapter 3 3.1 Identify the functional groups in each of the following molecules: O C NH2 H N O C OH H C CH2 (a) (b) O (c) Solutions: a. b. c. d. Amide‚ double bond Amine‚ carboxylic acid Double bond‚ ketone‚ ester O OCH3 (d) CH2OH Aromatic ring‚ double bond‚ alcohol (a) Alcohol (d) Amine (b) Aromatic ring (e) both ketone and amine (c) Carboxylic acid (f) two double bonds 3.2 Propose structures for simple molecules that contain the following functional groups:
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