Question
art A
Multiple Choice Question
Which claim made in the text is about the ages of rocks?
A.
The oldest ocean floor was formed about the ages of rocks.
B.
A large supercontinent began to split apart about 200 million years ago.
C.
Photosynthesizing organisms appeared about 2.7 billion years ago.
D.
The first oxygen-rich atmosphere developed about 2 billion years ago.
Part B
Multiple Select Question
How does the theory of plate tectonics explain this claim?
A.
Oxygen built up in the atmosphere only after banded iron formations were deposited on the separating continental cratons.
B.
As new ocean floor forms between separating land masses, older ocean floor consumed in oceanic trenches.
C.
The process of new ocean floor formation at ocean ridges began long before the breakup of the supercontinent; different continents and ocean basins existed before Pangea.
D.
Cratons on every continent have evidence of early photosynthetic organisms, since cratons are the oldest crust and have not been involved in tectonic processes.
Multiple Choice Question
Which claim made in the text is about the ages of rocks?
A.
The oldest ocean floor was formed about the ages of rocks.
B.
A large supercontinent began to split apart about 200 million years ago.
C.
Photosynthesizing organisms appeared about 2.7 billion years ago.
D.
The first oxygen-rich atmosphere developed about 2 billion years ago.
Part B
Multiple Select Question
How does the theory of plate tectonics explain this claim?
A.
Oxygen built up in the atmosphere only after banded iron formations were deposited on the separating continental cratons.
B.
As new ocean floor forms between separating land masses, older ocean floor consumed in oceanic trenches.
C.
The process of new ocean floor formation at ocean ridges began long before the breakup of the supercontinent; different continents and ocean basins existed before Pangea.
D.
Cratons on every continent have evidence of early photosynthetic organisms, since cratons are the oldest crust and have not been involved in tectonic processes.
Answers
GPT-4o mini
**Part A:**
The claim made in the text that is about the ages of rocks is:
**C. Photosynthesizing organisms appeared about 2.7 billion years ago.**
This statement indicates a specific time frame in the geological history of the Earth, relating directly to the ages of rocks, as fossils and sediments can help date when such organisms first appeared.
---
**Part B:**
The options that explain the claim related to the theory of plate tectonics are:
**B. As new ocean floor forms between separating land masses, older ocean floor is consumed in oceanic trenches.**
**C. The process of new ocean floor formation at ocean ridges began long before the breakup of the supercontinent; different continents and ocean basins existed before Pangea.**
These options relate to how plate tectonics operates by describing the creation and recycling of oceanic crust, which impacts the geological timeline and helps to understand the changes in Earth's atmosphere and environment over time.
Option A discusses specific geological formations related to oxygen build-up but does not directly connect to explaining plate tectonics. Option D makes a specific geological claim about cratons but doesn't directly tie back to the broader principles of plate tectonics.
The claim made in the text that is about the ages of rocks is:
**C. Photosynthesizing organisms appeared about 2.7 billion years ago.**
This statement indicates a specific time frame in the geological history of the Earth, relating directly to the ages of rocks, as fossils and sediments can help date when such organisms first appeared.
---
**Part B:**
The options that explain the claim related to the theory of plate tectonics are:
**B. As new ocean floor forms between separating land masses, older ocean floor is consumed in oceanic trenches.**
**C. The process of new ocean floor formation at ocean ridges began long before the breakup of the supercontinent; different continents and ocean basins existed before Pangea.**
These options relate to how plate tectonics operates by describing the creation and recycling of oceanic crust, which impacts the geological timeline and helps to understand the changes in Earth's atmosphere and environment over time.
Option A discusses specific geological formations related to oxygen build-up but does not directly connect to explaining plate tectonics. Option D makes a specific geological claim about cratons but doesn't directly tie back to the broader principles of plate tectonics.