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This quiz consists of 5 multiple choice and 5 short answer questions through Part Three: Chapters 9-11.

Multiple Choice Questions

1. How tall will hackberry trees grow to be?
(a) 60 feet tall.
(b) 30 feet tall.
(c) 40 feet tall.
(d) 25 feet tall.

2. In Part One: Chapter 8, what was the topic for Jahren's Ph.D thesis?
(a) Hackberry tree.
(b) Ash trees.
(c) Hickory trees.
(d) Elm trees.

3. In Part Three: Chapter 10, when did Jahren win the Macelwane Medal of the American Geophysical Union?
(a) 1999.
(b) 2001.
(c) 2006.
(d) 1996.

4. In Part Two: Chapter 10, how many times had Jahren already traveled the same places and run into poison ivy?
(a) 4.
(b) 1.
(c) 2.
(d) 3.

5. In Part Three: Chapter 5, how much pollen is necessary to fertilize an ovum and develop into a seed?
(a) 4 grains.
(b) 3 grains.
(c) 1 grain.
(d) 11 grains.

Short Answer Questions

1. In Part One: Chapter 7, to what does Jahren compare the cotyledons starting up photosynthesis?

2. In Part Two: Chapter 10, where did Jahren get an edema from the poison ivy?

3. In Part Three: Chapter 9, if all the water on Earth was an Olympic-sized swimming pool, what would the amount available to plants be comparable to?

4. In Part Two: Chapter 5, how many One A Day vitamins would it take to provide the magnesium that a maple tree needs?

5. In Part Two: Chapter 1, how long will it take a tree to lose all of its leaves?

(see the answer key)

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