Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I...

30
Geologic Time Quiz Review

Transcript of Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I...

Page 1: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Geologic Time Quiz Review

Page 2: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Are you ready for tomorrow’s quiz?A. YES! The study guide and the practice test helped a ton!

B. I think so…but I should look over my notes some more.

C. I am lost.

Page 3: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Molds, casts, coprolites, and petrified wood are all examples of ________.A. Disconformities

B. Radioactive isotopes

C. fossils

D. unconformities

Page 4: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

The youngest rock layer in an undisturbed rock sequence occurs ___.

A. At the top of the sequence

B. Above the sedimentary rock layer

C. At the bottom of the sequence

D. Above the unconformity

Page 5: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Radioactive dating enables geologists to determineA. The absolute ages of fossils

B. The half-life of a fossil organisms

C. The age of the atoms in a rock

D. The relative ages of fossils

Page 6: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

The amount of time it takes for one-half of the original amount of an isotope to decay is known as its ____.A. Radioactivity

B. Half-life

C. Correlation

D. Period

Page 7: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Cyanobacteria use the process of photosynthesis to produce energy, and _____is given off as a waste product.

A. Carbon dioxide

B. Nitrogen

C. Hydrogen

D. Oxygen

Page 8: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Evolution is the process by which organisms ______.A. Leave behind evidence of their existence.

B. Adapt to changes in their environments

C. Digest and grind their food

D. Become preserved by mineral replacement

Page 9: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Mummified animals found in dry caves can be examples of fossils with _____.

A. Superposition

B. Altered hard parts

C. Original preservation

D. Premineralization

Page 10: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

List the following units of geologic time in order from shortest to longest.

A. epoch

B. era

C. eon

D. period

Page 11: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Which of the following is used to determine the relative age of a rock?A. Radiometric dating

B. Correlation

C. Relative-age dating

D. Premineralization

Page 12: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

When part of the rock record is destroyed, the erosional gap that forms is a(n) _______.

A. Superposition

B. Key bed

C. Inclusion

D. Unconformity

Page 13: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Index fossils are useful to geologists if the fossils _____.A. Are scarce

B. Are not easily recognized

C. Have lived over a short period of time

D. Are not widely distributed geographically.

Page 14: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Which of the following is used to determine the absolute age of a rock?

A. Radiometric dating

B. Correlation

C. Relative-age dating

D. Premineralization

Page 15: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Which layer in this diagram is the oldest?A. K

B. P

C. Q

D. O

Page 16: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Which layer in this diagram is the youngest?A. K

B. P

C. Q

D. O

Page 17: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Layer P is called a(n) ______________.A. Unconformity

B. Fault

C. Inclusion

D. Intrusion

Page 18: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

List the following rock layers in order from oldest to youngest.A. H

B. J

C. P

D. O

E. L

Page 19: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Short Answer Questions: Type your response using your keypad.PRACTICE: What is the room number of this classroom?

257

1

Page 20: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Earth is _______ billion years old.

4.6

0.1

Page 21: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

The half-life of carbon-14 is 5370 years. A sample contains 180 grams of carbon initially. Now it contains 11.25 grams. How many half-lives have passed?A. 2

B. 3

C. 4

D. 5

Page 22: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

The half-life of carbon-14 is 5370 years. A sample contains 210 grams of carbon initially. How much will be left after 3 half-lives?A. 105 grams

B. 52.5 grams

C. 26.25 grams

D. 13.125 grams

Page 23: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Which geologic principle is used when a geologist observes an outcrop of rocks and determines the bottom layers is the oldest?A. Uniformitarianism

B. Original horizontality

C. superposition

D. inclusion

Page 24: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Which of the following is NOT a likely source of the Precambrian Earth’s heat?

A. radioactivity

B. Asteroid impact

C. Increased solar activity

D. Gravitational contraction

Page 25: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Remains of organisms in rocks are ____.A. Half-lives

B. fossils

C. unconformities

D. extinctions

Page 26: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Radiometric dating indicates that Earth is ______ years old.A. 2000

B. 5000

C. 3.5 billion

D. 4.6 billion

Page 27: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

If there is 16 grams of Carbon-14 were in the original organism, how much will be left after 2 half-lives?

4

1

Page 28: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

The next smaller division of geologic time after the era is a(n)A. period

B. stage

C. epoch

D. eon

Page 29: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

One of the earliest forms of life on Earth was the _____.A. gymnosperm

B. cyanobacteria

C. angiosperm

D. dinosaur

Page 30: Are you ready for tomorrow’s quiz? A.YES! The study guide and the practice test helped a ton! B.I think so…but I should look over my notes some more.

Dinosaurs lived during the ____ Era.A. Precambrian

B. Paleozoic

C. Mesozoic

D. Cenozoic