Biology, 20.04.2021 21:50 Maria3737

Where do these metals originate? Science students were tasked with completing the Venn diagram to distinguish between natural occurrences and occurrences due to human activities. There was great debate among the students. Can you help them out? Where
should these metals be placed and why?
A.
Heavy metals occur naturally in underground rocks and soils and leach into groundwater.
В.
Human activities such as mining and construction can release large amounts of heavy metals into nearby groundwater sources.
C.
Increased urbanization and the associated human activities are to blame for an increased levels of heavy metals, in our waterways.
D.
Heavy metals occur both naturally and as a result of human activities. They occur natural in rocks and soil and are the by-products of a multitude of h
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Where do these metals originate? Science students were tasked with completing the Venn diagram to d

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