22. Which of the following properly states the relationship between global temperature and global co2 levels?
23. The relationship between global warming and greenhouse gases is
24. Human actions have altered the global carbon cycle by________
25. The flow of carbon in an ecosystem is similar to the flow of energy in an ecosystem. TRUE or FALSE?
26. Which of these would need to be accounted for in a carbon footprint?
27. The carbon cycle is the movement of carbon atoms via natural processes such as _______
28. Slash and burn agriculture affects global warming by __________
29. How do scientists measure changes in the levels of global atmospheric CO2?
30. A television show about conspiracy theories is discussing global warming, claiming it is a myth that co2 levels have risen over the last 1,000 years. Which evidence would be most useful to use in educating the producers to convince them that this is not a myth
31. What makes an organism a keystone species?
32. Which is NOT necessarily true of a keystone species?
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