Question

Humans have only been on Earth for only 200,000 years, so there is no written or visual record of what time was like before then. We have evidence to show that organisms existed many years prior to humans. It is estimated that life evolved on Earth 3.5-4.0 billion years ago. One of the main pieces of evidence we have for prior life is fossils.
Question 1
PART A
By looking at the different layers of the Earth, we are able to gather information about the age and environment of that area. We can also compare its age to other layers. What is the term used to describe the age of fossil layers based on its location?
Responses
A evolutionevolution
B photosynthesisphotosynthesis
C radioactive datingradioactive dating
D law of superpositionlaw of superposition
Question 2
PART A
Based on your answer to Part A, which of these best describes layers 1-5 versus layers 7-12?
Responses
A layers 1-5 are older and aquatic and layers 7-12 are younger and terrestriallayers 1-5 are older and aquatic and layers 7-12 are younger and terrestrial
B layers 1-5 are older and terrestrial and layers 7-12 are younger and aquaticlayers 1-5 are older and terrestrial and layers 7-12 are younger and aquatic
C layers 1-5 are younger and aquatic and layers 7-12 are older and terrestrial
D layers 1-5 are younger and terrestrial and layers 7-12 are older and aquatic

Answers

GPT-4o mini
**Question 1:**
The term used to describe the age of fossil layers based on its location is:
D. **law of superposition**

**Question 2:**
Based on the law of superposition, if layers 1-5 are older than layers 7-12, the best description would be:
A. **layers 1-5 are older and aquatic and layers 7-12 are younger and terrestrial** (assuming that the context of the layers indicates a transition from an aquatic environment to a terrestrial one).

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