The Cambrian explosion refers to ____
a. a meteorite impact
b. a sudden appearance of fossils
c. a sudden extinction
d. the start of evolution
e. volcanism that created the Ring of Fire
b
Environmental & Atmospheric Sciences
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The first evidence of shelled organisms is calcareous tubes found with the Ediacaran fauna
a. True b. False
Environmental & Atmospheric Sciences
The Law of the Sea treaty allows coastal countries to claim an EEZ extending up to 20 miles offshore
Indicate whether the statement is true or false.
Environmental & Atmospheric Sciences
In a mountain/valley wind system, mountain breezes occur: a. during nighttime
b. during daytime. c. whenever there is significant cloud cover. d. None of these choices.
Environmental & Atmospheric Sciences
This country is the least densely populated country in the Latin American region
a. Falkland Islands b. Aruba c. Grenada d. St. Lucia
Environmental & Atmospheric Sciences