What Is the Evidence That Human Activity Is Causing Increased

question 56

Multiple Choice

What is the evidence that human activity is causing increased atmospheric CO₂ levels?

• A)The isotopic composition of atmospheric CO₂ can be measured and shows that CO₂ being added to the air now comes from combustion of fossil fuels.
• B)There is a correlation between the increase of overall CO₂ levels and human activity since the Industrial Revolution.
• C)There is no direct evidence; CO₂ levels fluctuate naturally and it may just be coincidence that higher CO₂ levels correspond to this period of human activity.
• D)There is no direct evidence; it is impossible to know what CO₂ levels were like in the past, so there is no standard for comparison.
• E)Since forests are being cut down by humans, CO₂ levels must be rising because there are fewer plants that remove CO₂ through photosynthesis.

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Definitions:

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The aspect of leadership focused on goal attainment and the operational aspects of a group or organization, emphasizing the completion of tasks.

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A style of leadership that emphasizes collaboration, relationship-building, and community-oriented decision-making.

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