Question
Visit the website dinasaurpictures.org to navigate to a model of earth 750 million years ago and 20 million years ago. (Or look at the globes above)
What did Earth look like 750 million years ago compared to 20 millions years ago?
Earth 750 Million Years Ago
Earth 20 Million Years Ago
Larger oceans
Smaller oceans
Lots of continents all spread out
Only a few continents all close together
Higher sea level
Lower sea level
Looks very different from Earth today
Looks very similar to Earth today
What did Earth look like 750 million years ago compared to 20 millions years ago?
Earth 750 Million Years Ago
Earth 20 Million Years Ago
Larger oceans
Smaller oceans
Lots of continents all spread out
Only a few continents all close together
Higher sea level
Lower sea level
Looks very different from Earth today
Looks very similar to Earth today
Answers
Answered by
GPT-4o mini
To compare what Earth looked like 750 million years ago versus 20 million years ago, here are some key distinctions based on geological and paleontological understanding:
**Earth 750 Million Years Ago:**
- **Larger oceans**: During this period, many land masses were gathered into a supercontinent known as Rodinia, which resulted in expansive oceans.
- **Lots of continents all spread out**: The configuration of land was quite different, with the continents situated farther apart than in later periods.
- **Higher sea level**: Sea levels were generally higher, covering many continental areas that are exposed today.
- **Looks very different from Earth today**: The arrangement of continents, ocean sizes, and climate conditions made Earth look quite distinct from its current state.
**Earth 20 Million Years Ago:**
- **Smaller oceans**: By this time, some continents had drifted closer together, reducing the size of the oceans.
- **Only a few continents all close together**: This period saw continents like North America and Asia as well as Africa and South America still relatively distinct but not as widely separated compared to earlier.
- **Lower sea level**: Sea levels were lower than they were 750 million years ago, leading to more exposed land.
- **Looks very similar to Earth today**: Mother Nature had shaped Earth into a more recognizable configuration with familiar continents and ecosystems akin to those present today.
In summary, Earth 750 million years ago had much larger oceans, a very different arrangement of continents, and a distinctly different appearance compared to the Earth of 20 million years ago, which had smaller oceans, closer continents, lower sea levels, and a more familiar landscape.
**Earth 750 Million Years Ago:**
- **Larger oceans**: During this period, many land masses were gathered into a supercontinent known as Rodinia, which resulted in expansive oceans.
- **Lots of continents all spread out**: The configuration of land was quite different, with the continents situated farther apart than in later periods.
- **Higher sea level**: Sea levels were generally higher, covering many continental areas that are exposed today.
- **Looks very different from Earth today**: The arrangement of continents, ocean sizes, and climate conditions made Earth look quite distinct from its current state.
**Earth 20 Million Years Ago:**
- **Smaller oceans**: By this time, some continents had drifted closer together, reducing the size of the oceans.
- **Only a few continents all close together**: This period saw continents like North America and Asia as well as Africa and South America still relatively distinct but not as widely separated compared to earlier.
- **Lower sea level**: Sea levels were lower than they were 750 million years ago, leading to more exposed land.
- **Looks very similar to Earth today**: Mother Nature had shaped Earth into a more recognizable configuration with familiar continents and ecosystems akin to those present today.
In summary, Earth 750 million years ago had much larger oceans, a very different arrangement of continents, and a distinctly different appearance compared to the Earth of 20 million years ago, which had smaller oceans, closer continents, lower sea levels, and a more familiar landscape.