While preparing to build a hydroelectric dam, the safety for various potential hazards must be given attention. Some of these include special attention towards the channels leading to dangerous areas or spillways, attention towards the effectiveness of the barriers, areas where higher currents exist, attention must also be given towards environmental aspects such as damming the rivers impacts wild and aquatic life, reduction of dissolved oxygen harming the fishes, and also while building the dam the communities living around should be taken into consideration that there is no potential hazard to them.
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C. Because data tables are good for keeping good track of your data and can make looking back on it and gathering evidence much easier
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Coral ecosystems are a source of food for millions; protect coastlines from storms and erosion; provide habitat, spawning and nursery grounds for economically important fish species; provide jobs and income to local economies from fishing, recreation, and tourism; are a source of new medicines
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