2. What two drainage basins were linked with the reversal of the Chicago River and the creation of the Sanitary and Ship Canal?
(a) The Mississippi River and Great Lakes.
(b) The Chicago River and Great Lakes.
(c) The Mississippi River and Chicago River.
(d) The Great Plains and the Great Lakes.

3. Who is Paul Thomas?
(a) An employee at Odin.
(b) A mouse research expert.
(c) A toad research expert.
(d) A CRISPR expert.

4. To keep the temperature increase at a minimum, the world would have to end all emissions by when?
(a) The next five decades.
(b) The next few years.
(c) The next century.
(d) The next decade.

5. How many trees would have to be planted to remove a significant amount of carbon dioxide?
(a) A million.
(b) A trillion.
(c) A billion.
(d) 900,000 thousand.

Short Answer Questions

1. What does Kolbert end the chapter wondering about all the burning trash, the acres of glass, the boxes of bumblebees, the vegetables raised on chemicals and captured carbon dioxide?

2. After a course on corals, Ruth Gates moved from where to Jamaica in 1985 to study corals and their symbionts?

3. Why was the Old River Control Auxiliary Structure created?

4. When the canal in Chicago reversed the flow of the river, into where did it eventually lead?

5. What invention launched the Industrial Revolution?

(see the answer key)

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