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Nitrogen may be returned from plants and animals back to the soil as leaves, skin , hair and dead bodies.
Q1: Match the type of employee with its
Q8: The drop in China's total fertility rate
Q9: Match the Federal legislation with its description.<br>Prohibits
Q10: Ecological succession proceeds in an orderly fashion
Q16: Incident reports are covered by the _
Q22: Bottled water is a sustainable alternative to
Q42: Organisms that feed on both plants and
Q45: Water found in the spaces of soil,
Q46: In natural ecosystems, what types of organisms
Q54: Carbon dioxide warms the troposphere, enhancing the