The plant fossils found at Svalbard in Norway provided evidence of drifting continents because they were warm climate plants that would not grow in a cold polar area. This suggests that Svalbard was once located in a much warmer climate, supporting the theory of continental drift, which posits that continents have moved over geological time to their current positions.
Describe how plant fossils found at Svalbard in Norway gave evidence of drifting continents.(1 point)
Responses
They were found in glacial deposits.
They were found in glacial deposits.
They were plants that became extinct millions of years earlier.
They were plants that became extinct millions of years earlier.
They were warm climate plants that would not grow in a cold polar area.
They were warm climate plants that would not grow in a cold polar area.
They were found only in that one location.
11 answers
answer?
The correct response is: They were warm climate plants that would not grow in a cold polar area. This indicates that Svalbard was once situated in a warmer climate, supporting the evidence for the movement of continents over time.
Geologists found fossils of similar marsupials from the same time period across South America, Africa, Antarctica, India and Australia. What theory is supported by this discovery?(1 point)
Responses
Those continents were once a part of one supercontinent.
Those continents were once a part of one supercontinent.
Early marsupials were strong swimmers.
Early marsupials were strong swimmers.
A vast land bridge once connected those continents.
A vast land bridge once connected those continents.
The processes happening today are the same processes that have occurred in the past.
Responses
Those continents were once a part of one supercontinent.
Those continents were once a part of one supercontinent.
Early marsupials were strong swimmers.
Early marsupials were strong swimmers.
A vast land bridge once connected those continents.
A vast land bridge once connected those continents.
The processes happening today are the same processes that have occurred in the past.
The correct response is: Those continents were once a part of one supercontinent. This discovery of similar marsupial fossils across continents supports the theory of continental drift, indicating that these landmasses were once joined together in a supercontinent before breaking apart and drifting to their current locations.
How were the Himalayas formed?
(1 point)
Responses
due to a sudden shift along a transform boundary
due to a sudden shift along a transform boundary
due to an increase in volcanic activity
due to an increase in volcanic activity
when two plates collided with each other
when two plates collided with each other
when a mid-ocean ridge split apart
(1 point)
Responses
due to a sudden shift along a transform boundary
due to a sudden shift along a transform boundary
due to an increase in volcanic activity
due to an increase in volcanic activity
when two plates collided with each other
when two plates collided with each other
when a mid-ocean ridge split apart
The correct response is: when two plates collided with each other. The Himalayas were formed as a result of the collision between the Indian Plate and the Eurasian Plate, which caused the uplift of the mountain range.
Which statement describes a volcano that is classified as dormant?(1 point)
Responses
It has never erupted.
It has never erupted.
It is not expected to ever erupt again.
It is not expected to ever erupt again.
It is expected to erupt soon.
It is expected to erupt soon.
It has not erupted recently.
Responses
It has never erupted.
It has never erupted.
It is not expected to ever erupt again.
It is not expected to ever erupt again.
It is expected to erupt soon.
It is expected to erupt soon.
It has not erupted recently.
The correct response is: It has not erupted recently. A dormant volcano is one that is currently inactive but may erupt again in the future.
Identify the type of plate boundary that created the volcanoes of Iceland.(1 point)
Responses
a convergent boundary on land
a convergent boundary on land
a divergent boundary on land
a divergent boundary on land
a transverse boundary on land
a transverse boundary on land
a divergent boundary in the ocean
Responses
a convergent boundary on land
a convergent boundary on land
a divergent boundary on land
a divergent boundary on land
a transverse boundary on land
a transverse boundary on land
a divergent boundary in the ocean
The correct response is: a divergent boundary in the ocean. The volcanoes of Iceland are formed along the Mid-Atlantic Ridge, where the North American and Eurasian tectonic plates are moving apart, creating a divergent boundary in the ocean.
1 answer