FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 24: Geologic Time

Show Answer

Share

---

All types

Filters

Study FlashcardsPractice ExamLearn

Question 71

Multiple Choice

Review LaterAdd Note

Review Later

Which epoch is also called the Ice Ages?

A) Permian
B) Holocene
C) Pleistocene
D) Cretaceous

E) A) and B)
F) A) and C)

Correct Answer

verified

Show Answer

Question 72

Short Answer

Review LaterAdd Note

Review Later

Layers of sediment, lava, and ash are originally laid down in a(n) ______________ position.

Correct Answer

verified

Show Answer

Question 73

Multiple Choice

Review LaterAdd Note

The Cambrian is a(n)

The span of time required for the radioactive decay of half the parent nuclei in a sample is known as the ______________.

Starting with a sample of pure parent radionuclide, what would be the ratio of the parent radionuclide to its daughter after two half-lives have elapsed?

The oldest algal fossils are found on the continent of ______________.

Any indication of prehistoric life preserved in rock is called

The Shroud of Turin, the Iceman, and the Dead Sea Scrolls were dated by use of

Lack of knowledge of the phenomenon called ______________ led Lord Kelvin to an incorrect estimate of the age of Earth.

The organisms called ______________ were the first organisms with eyes and were wiped out at the end of the Paleozoic era.

The earliest (oldest) period in the Paleozoic era is the ______________.

In Europe, the combined Mississippian and Pennsylvanian periods are known as the

The hollow depression left when a shell or bone is dissolved completely out of a rock is called a(n)

The Jurassic is a(n)

The Paleozoic era ended and the Mesozoic era began about ______________ million years ago.

The term age of reptiles is sometimes used to refer to the ______________ era.

Periods are divided into

The actual age of rock layers and geologic events is referred to as ______________ geologic time.

The process of matching up rock layers in different localities by the use of index fossils or other means is called ______________.

The Cenozoic era consists of the Tertiary and ______________ periods.