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legumes are able to form a symbiotic relationship with nitrogen-fixing soil bacteria called rhizobia.The result of this symbiosis is to form nodules on the plant root,within the bacteria can convert atmospheric nitrogen into ammonia that can be used by the plant
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Water may become polluted and also become scarce to the agriculture due to the population increase
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they provide a straight path from the spinal cord to target muscles.</span>
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In science, a variable is any item, factor, or condition that can be controlled or changed