Prior to 1955 Comparatively spea king, short emphasis was placed on ecology (the study of the relationship of plants and animals to their environment) prior to 1955 Air pollution, toxicant waste, marine pollution, pesticides, oil spills, sexually transmitted disease rain, etc., are relatively new problems that are taking their tolls on the environment. Since 1955 Since 1955, however, our interest in protect the environment has been kindled by recognition of these environmental problems. Stu...If you call for to get a beat essay, order it on our website: BestEssayCheap.com
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