Absolute Dating

Question 1

Use the drop-down menus to complete the paragraph.

Revolt · Accepted Answer

Geologists determine absolute age by comparing the amounts of radioactive and nonradioactive elements in rock. The radioactive, or , elements decay into nonradioactive elements. Because this rate of d: igneous; Geologists determine absolute age by comparing the amounts of radioactive and nonradioactive elements in rock. The radioactive, or , elements decay into nonradioactive elements. Because this rate of d: unstable; Geologists determine absolute age by comparing the amounts of radioactive and nonradioactive elements in rock. The radioactive, or , elements decay into nonradioactive elements. Because this rate of d: constant; Geologists determine absolute age by comparing the amounts of radioactive and nonradioactive elements in rock. The radioactive, or , elements decay into nonradioactive elements. Because this rate of d: stable

Question 2

Which statements about radioactive decay are true? Check all that apply.Most elements are unstable.Radioactive decay happens when one kind of atom becomes another kind.Radioactive elements occur in nature.All elements have the same rate of decay.Carbon-14 decays into nitrogen-14.

Revolt · Accepted Answer

B: Radioactive decay happens when one kind of atom becomes another kind.; C: Radioactive elements occur in nature.; E: Carbon-14 decays into nitrogen-14.

Question 3

Which statements describe the image? Check all that apply.

Revolt · Accepted Answer

C: The process works only with organic matter.; D: The element has a half-life of 5,730 years.

Question 4

Use the drop-down menus to complete the paragraph.

Revolt · Accepted Answer

A: ✔ igneous

Question 5

Which object would a geologist date using carbon-14 dating?

Revolt · Accepted Answer

B: a woolly mammoth fossil that existed 15,000 years ago

Question 6

How would a geologist use absolute dating to determine the age of sedimentary layers?

Revolt · Accepted Answer

B: by dating the age of intrusions and extrusions near a sedimentary rock layer

Question 7

✔ 2.6 billion years3.9 billion years5.2 billion years

Revolt · Accepted Answer

A: 2.6 billion years

Question 8

✔ unstablebalanced stable unbalanced

Revolt · Accepted Answer

A: ✔ unstable

Question 9

2.6 billion years3.9 billion years✔ 5.2 billion years

Revolt · Accepted Answer

C: 5.2 billion years

Question 10

changing slow ✔ constant

Revolt · Accepted Answer

C: ✔ constant

Absolute Dating Answers

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