Question 6 125 125 points given the very limited

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Question 6 1.25 / 1.25 points Given the very limited climate record based on direct measurements, scientists have resorted to proxies. Which of the following has/have been used as/a proxy/ies to shed light on climates of the past? Question options: tree rings ice seafloor sediment All of the above
Question 7 1.25 / 1.25 points Human actions such as burning and agriculture change the abundance and distribution of vegetation and alter erosion rates. Question options:
Question 8 1.25 / 1.25 points The process by which a specific isotope of a given element is preferentially selected over other isotope to enter the structure of a natural substance is called __________.
isolation separation Question 9 1.25 / 1.25 points There is near consensus in the scientific community that _________.
Question 10 1.25 / 1.25 points What characteristic/s of seafloor sediment from plankton can be used to study climate change? Question options: chemical composition and faunal assemblage mineral composition roundness and sorting porosity and permeability

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