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This quiz consists of 5 multiple choice and 5 short answer questions through Part II: Elements of Chaos, "Plagues of Warming" - "Systems".

Multiple Choice Questions

1. Approximately how many separate wildfires broke out in California in 2017?
(a) 5,000.
(b) 6,000.
(c) 9,000.
(d) 7,000.

2. The author notes in "Systems" that soldiers returning home from war are estimated to suffer from PTSD at rates between what percentages?
(a) 25-50%.
(b) 45-70%.
(c) 11-31%.
(d) 5-10%.

3. Who proposed the term "Half-Earth" (20)?
(a) Jair Bolsonaro.
(b) Gernot Wagner.
(c) Irakli Loladze.
(d) E. O. Wilson.

4. Globally, about what percentage of freshwater is used for food production and agriculture?
(a) 80-90%.
(b) 40-50%.
(c) 30-40%.
(d) 70-80%.

5. When was the Paris Agreement ratified?
(a) 2018.
(b) 2011.
(c) 2016.
(d) 2015.

Short Answer Questions

1. The rate at which humankind is adding carbon dioxide into the atmosphere is how many times faster than any point in human history before the beginning of industrialization?

2. The area referred to as America's "tornado alley" has moved how many miles in just 30 years, according to the author in "Disasters No Longer Natural"?

3. According to the author in "Hunger," undernourishment in the world's developing countries has dropped from over 30% in 1970 to what percentage today?

4. How many people were killed during the Russian heat wave of 2010?

5. Today (as of 2018), the U.S. climate hovers around what temperature?

(see the answer key)

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