Old Earth Ministries
Earth History Test 2


Please choose the correct answer for each question below. There are 15 questions. You cannot save your progress and come back later to complete the test, therefore you must complete the test during one session. Please enter your name, a single character in the email field, and the number 1 in the Student ID field.
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1: The Hadeon Eon ended approximately
4.6 Ga (billion years ago)
3.8 Ga
542 Ma
2.8 Ga
2: The main 'organism' responsible for adding oxygen to the earth's atmosphere is:

3: The Precambrian is divided into three Eons. Fill in their names in order, oldest to youngest (questions 3, 4, 5). The oldest eon is the...

4: Middle Eon is the...

5: Youngest Eon is the ...

6: Banded Iron Formations, and Red Beds, colored by hematite, became abundant during the:
Hadeon Eon
Archean Eon
Proterozoic Eon
7: The name of the supercontinent that existed from about 1100 to 750 million years ago is:
Rodinia
Columbia
Vaalbara
Kenorland
8: The names of the four Precambrian supercontinents are listed in question 7. Put them in the correct age sequence, from oldest to youngest (questions 8 thru 11). The oldest is...

9: The second oldest is...

10: The third oldest is...

11: The youngest is...

12: Snowball earth occurred shortly after the earth's formation, approximately 4 billion years ago.
True
False
13: The Great Oxygenation Event (GOE), when free oxygen appeared in earth's atmosphere, occurred about::
3.5 Ga
1.1 Ga
542 Ma
2.4 Ga
14: The oldest rocks on earth are found in the North American craton of Canada.
True
False
15: This layer of the earth's atmosphere, which protects life forms from ultraviolet radiation, made it possible for more complex life forms to exist. This layer is called the __________ layer.


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