When a scientist determines the relative age of a fossil or a rock, they are determining

the age of the fossil or rock compared with other rocks and features nearby.

Carbon-14 dating works well for finding the age of...

dead plants/animals from the past 70,000 years

How does the law of crosscutting explain the age of a fault?

The fault is younger than the rocks it cuts through.

Select the TRUE statement from the choices: layer A is the youngest layer, and J is the oldest layer, Fault L is younger than layer F, Dike K is older than fault L, layers A-G were formed at the angle as shown in the diagram

Fault L is younger than layer F

According to the law of superposition, where are the oldest fossils found?

Near the bottom of the rock layers

What is likely to cause cracks on the sidewalk?

tree roots growing bigger and repeated freezing and thawing of water.

What human activities can increase the rate of weathering and erosion?

burning fossil fuels, increasing acid rain, cutting down trees

When Ron saw the Rocky Mountains for the first time, he exclaimed, "These mountains are much younger than ours back east in North Carolina!" Which feature supports his conclusion that the Appalachians are much older mountains?

The Appalachians have rounded tops due to weathering over a longer period.

How is mechanical/physical weathering different from chemical weathering?

Chemical weathering changes the chemical composition of the rock; mechanical weathering does not.

What could account for the change in soil washing down the hill after the horses were moved? Options: The fence kept the soil contained. The amount of rain decreased. Plants grew and kept the soil intact. The soil was completely gone.

Plants grew and kept the soil intact.

Cecil soils found here in the NC piedmont can be described as:

weathered granite, rich in red clay, holds water well

Cleveland soils of the NC mountains can be described as:

dark, rich in organic matter, but poor in nutrients due to greater rainfall leaching nutrients to lower levels

U-shaped valleys are formed by

the scraping action of glaciers

Rock Cycle, WED, Soils Test sp '25 Flashcards

Student preview

40 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Formed by heat and pressure

Back

Metamorphic

2.

FLASHCARD QUESTION

Front

Formed by cooling & solidification of lava

Back

Extrusive Igneous

3.

FLASHCARD QUESTION

Front

Formed by compacting & cementing of sediments

Back

Sedimentary

4.

FLASHCARD QUESTION

Front

Formed by weathering & erosion

Back

sediments

5.

FLASHCARD QUESTION

Front

Has large crystals like this sample of diorite because of slow cooling

Back

intrusive igneous rock

6.

FLASHCARD QUESTION

Front

Has small or no crystals like this sample of obsidian because of rapid cooling

Back

extrusive igneous

7.

FLASHCARD QUESTION

Front

Has wavy bands as shown in this sample of gneiss.

Back

foliated metamorphic rock

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