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Question 1 (1 point)

Which term is described as a shelf of undersea land reaching a depth of about 200 meters (656 feet) and extending out from the shoreline?

Question 1 options:

continental shelf

abyssal plains

deep-sea trenches

guyots

Question 2 (1 point)
Which term is described as a seamount with a flattened top?

Question 2 options:

continental shelf

abyssal plains

deep-sea trenches

guyots

4.08 Quiz: Seafloor Spreading Pool 2
Question 3 (1 point)
Where would you expect to find lava solidifying into basalt?

Question 3 options:

near the boundary between ocean crust and continental crust

along the continental slope

in the center of the continents

at the center of the mid-ocean ridge
4.08 Quiz: Seafloor Spreading Pool 3
Question 4 (1 point)
Iron-rich minerals in rock pointed in one direction and then switched to the exact opposite direction. This supports what idea?

Question 4 options:

The rocks were being turned around.

Earth's magnetic field stopped working entirely.

Earth's magnetic field goes through pole reversals.

Being underwater makes the rocks respond to magnetic fields.

Question 5 (1 point)
The magnetic quality of ancient rocks is called _________.

Question 5 options:

geomagnetism

iron deficiency

paleomagnetism

magnetic fields

1 answer

Here are the answers to your questions:

Question 1: Which term is described as a shelf of undersea land reaching a depth of about 200 meters (656 feet) and extending out from the shoreline?

Answer: continental shelf

Question 2: Which term is described as a seamount with a flattened top?

Answer: guyots

Question 3: Where would you expect to find lava solidifying into basalt?

Answer: at the center of the mid-ocean ridge

Question 4: Iron-rich minerals in rock pointed in one direction and then switched to the exact opposite direction. This supports what idea?

Answer: Earth's magnetic field goes through pole reversals.

Question 5: The magnetic quality of ancient rocks is called _________.

Answer: paleomagnetism

Feel free to ask if you have more questions!