Question

name: mariana alvarado
lesson: analyzing the rock and fossil records quiz questions.

1. the principle of uniformitarianism states that sedimentary rocks are deposited in horizontal layers.

true - false question.
a. true
b. false

1. the oldest rock layer in an undisturbed rock sequence occurs

multiple - choice question.
a. at the bottom of the sequence
b. below the sedimentary rock layer
c. below the unconformity
d. at the top of the sequence

1. the remains of living plants or animals are called fossils.

true - false question.
a. true
b. false

1. determining the order of events and the relative age of rocks by examining the position of rocks in a sequence is called

multiple - choice question.
a. absolute dating
b. radiometric dating
c. relative dating
d. radiocarbon dating

1. the principle of superposition can be used to determine.

multiple - choice question.
a. the actual age of these rock layers
b. the relative densities of these rock layers
c. the actual temperatures of these rock layers
d. the relative age of these rock layers

1. the principle that in undisturbed rock layers, the oldest rocks are on the bottom.

a. superposition
b. original horizontality
c. lateral continuity
d. inclusions
e. cross - cutting relationships

1. according to this principle sediments are deposited in large continuous sheets in all lateral directions.

a. superposition
b. original horizontality
c. lateral continuity
d. inclusions
e. cross - cutting relationships

Explanation:

1. The principle of uniformitarianism states that the same geological processes that operate today operated in the past at roughly the same rate, not that sedimentary rocks are deposited in horizontal layers (that's original horizontality), so the answer is False.
2. In an undisturbed rock sequence, the oldest rock layer is at the bottom due to the way sediments accumulate over time, so the answer is a.
3. Fossils are indeed the remains of living plants or animals, so the answer is True.
4. Determining the order of events and relative age of rocks by examining their position in a sequence is called relative - dating, so the answer is c.
5. The principle of superposition is used to determine the relative age of rock layers, so the answer is d.
6. The principle that in undisturbed rock layers, the oldest rocks are on the bottom is the principle of superposition, so the answer is a.
7. The principle that sediments are deposited in large continuous sheets in all lateral directions is lateral continuity, so the answer is c.

Answer:

1. b. False
2. a. at the bottom of the sequence
3. a. True
4. c. relative dating
5. d. the relative age of these rock layers
6. a. Superposition
7. c. Lateral continuity