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This quiz consists of 5 multiple choice and 5 short answer questions through Part 5, Chapter 20.

Multiple Choice Questions

1. Photosynthesis was developed during the early history of life on Earth by what?
(a) Xenobacteria.
(b) Cyanobacteria.
(c) Magentobacteria.
(d) Flavobacteria.

2. Arranged side by side, how many atoms can fit across the width of a typical human hair?
(a) Half a trillion.
(b) Five thousand.
(c) Half a million.
(d) Five hundred.

3. How deep is Earth's atmosphere?
(a) 120 miles.
(b) 5 miles.
(c) 800 miles.
(d) 30 miles.

4. Fred Hoyle came up with the term "Big Bang" while trying to:
(a) Prove the theory.
(b) Simplify how the universe came to exist.
(c) Disprove the theory.
(d) Show how life evolved on Earth.

5. If Earth did not have an atmosphere, it would be what?
(a) Boiling hot.
(b) Extremely windy.
(c) Frozen.
(d) Dark.

Short Answer Questions

1. James Hutton believed that the natural forces forming the geology of Earth are:

2. Scientists eventually figured out that certain unusual rocks near Manson, Iowa, were not because of ancient volcanic activity as they first surmised, but the result of what?

3. Compared to at sea level, oxygen at a few thousand feet above sea level is:

4. When oceanographer Jacques Piccard and a U.S. Navy sailor descended more than 35,000 feet to the deepest part of the world's oceans, what happened?

5. According to the Reverend William Buckland, the biblical reference to "in the beginning" with regards to the formation of Earth could refer to:

(see the answer key)

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