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

Vast deposits of coal formed in regions with ancient deserts.
Vast deposits of coal formed in regions with ancient deserts.

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.

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.

Cratons match across the edges of continents.
Cratons match across the edges of continents.

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.

Fossils of marsupials were originally the same across South America and Australia.

1 answer

The three correct answers that provide evidence that South America, Africa, Antarctica, and Australia were once together as one supercontinent are:

  1. Glacial deposits and scratches in the bedrock from an ice sheet match in distant regions. - This indicates that these areas were once connected and experienced similar climatic conditions.

  2. Cratons match across the edges of continents. - The alignment of ancient rock formations supports the idea of these continents being part of a larger landmass.

  3. Fossils of marsupials were originally the same across South America and Australia. - The presence of similar fossils on continents that are now separated suggests that they were once joined.

These pieces of evidence support the theory of continental drift and the existence of the supercontinent Pangaea.