Question Which of the following provide evidence that South America, Africa, Antarctica, and Australia were once together as one supercontinent? Select the three correct answers.(2 points) Responses Mountain chains match up where South America collided with Australia to form Pangaea. Mountain chains match up where South America collided with Australia to form Pangaea. Icy glaciers covered South America, Africa, Antarctica, and Australia as one supercontinent over the North Pole. Icy glaciers covered South America, Africa, Antarctica, and Australia as one supercontinent over the North Pole. Vast deposits of coal formed in regions with ancient deserts. Vast deposits of coal formed in regions with ancient deserts. Cratons match across the edges of continents. Cratons match across the edges of continents. Glacial deposits and scratches in the bedrock from an ice sheet match in distant regions. Glacial deposits and scratches in the bedrock from an ice sheet match in distant regions. Fossils of marsupials were originally the same across South America and Australia.
Mountain chains match up where South America collided with Australia to form Pangaea. Cratons match across the edges of continents. Fossils of marsupials were originally the same across South America and Australia.
The three correct answers are:
1. Mountain chains match up where South America collided with Australia to form Pangaea.
2. Glacial deposits and scratches in the bedrock from an ice sheet match in distant regions.
3. Fossils of marsupials were originally the same across South America and Australia.
To determine which of the options provide evidence that South America, Africa, Antarctica, and Australia were once together as one supercontinent, we can analyze each answer choice:
1. Mountain chains match up where South America collided with Australia to form Pangaea. (Correct)
This answer suggests that mountain chains on South America and Australia align, indicating that they were once joined together as part of the supercontinent Pangaea.
2. Icy glaciers covered South America, Africa, Antarctica, and Australia as one supercontinent over the North Pole. (Incorrect)
This answer is not supported by scientific evidence. The presence of glaciers does not necessarily indicate that these continents were once connected.
3. Vast deposits of coal formed in regions with ancient deserts. (Incorrect)
This answer focuses on the formation of coal deposits in ancient deserts, but it does not provide direct evidence of the continents being connected.
4. Cratons match across the edges of continents. (Correct)
Cratons are ancient, stable regions of continental crust. If the cratons on different continents match across their edges, it suggests that these continents were once together.
5. Glacial deposits and scratches in the bedrock from an ice sheet match in distant regions. (Correct)
The presence of matching glacial deposits and scratches in distant regions indicates that these areas were once covered by the same ice sheet, supporting the idea of the continents being connected.
6. Fossils of marsupials were originally the same across South America and Australia. (Correct)
The presence of similar marsupial fossils in both South America and Australia suggests that these continents were once joined, allowing for the migration of these organisms.
Based on the explanations provided, the correct answers are:
- Mountain chains match up where South America collided with Australia to form Pangaea.
- Cratons match across the edges of continents.
- Glacial deposits and scratches in the bedrock from an ice sheet match in distant regions.
- Fossils of marsupials were originally the same across South America and Australia.