A geologist studies rocks and such
The carbon cycle describes the way the element carbon moves between the Earth's biosphere, hydrosphere, atmosphere, and geosphere. It is important for a few reasons: Carbon is an essential element for all life, so understanding how it moves helps us to understand biological processes and factors that influence them.
Source: Google
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D is the answer. Since it’s caused by a subduction.
False.
The equipment and tubing might have still been touched or used, even if there isn't blood inside. All equipment should be thoroughly cleaned before use, or if necessary, discarded.
