2. Each day at the Old River Control Auxiliary Structure, the gates are raised or lowered, depending on what?
(a) The water level and activity on that particular day.
(b) The amount of rain the region as received.
(c) The weather report.
(d) The direction of the wind on any particular day.

3. Where is Gates’ institution located?
(a) Jamaica.
(b) In the Mohave.
(c) Off the coast of Sydney, Australia.
(d) Off the coast of Oahu, HI.

4. How deep is Devil’s Hole at its deepest?
(a) At least 50 feet deep.
(b) At least 500 feet deep.
(c) At least 5,000 feet deep.
(d) At least 1,500 feet deep.

5. How far away is a fake Devil’s Hole from the real one?
(a) About 1 mile.
(b) About 5 miles.
(c) About 10 miles.
(d) About 50 miles.

Short Answer Questions

1. The latest report of the Intergovernmental Panel on Climate Change, or IPCC, showed that the majority of possibilities for keeping climate temperatures down require what?

2. What does Kolbert find at LSU’s Center for River Studies?

3. When did William Lewis Manly take a difficult journey west?

4. What are two species that Revive & Restore hope to resurrect?

5. What is the scientific name for the Devil’s Hole pupfish?

(see the answer key)

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