Question

Question

Wegener believed continents moved, but he did not know how. Identify what needed to happen before Wegener's idea about moving continents could be proven.(1 point)
Responses

Wegener had to recheck his data and change his conclusions.
Wegener had to recheck his data and change his conclusions.

New information was needed on the composition of Earth's crust.
New information was needed on the composition of Earth's crust.

Scientists had to directly observe tectonic plate movement.
Scientists had to directly observe tectonic plate movement.

Advances in technology were needed to gather more evidence.
Advances in technology were needed to gather more evidence.
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Answer 1

The correct response is:

Advances in technology were needed to gather more evidence.

Wegener's theory of continental drift could only gain widespread acceptance after advancements in technology led to a better understanding of plate tectonics and the mechanisms behind continental movement.

Answer 2

Question
Select the correct answer from the list.(2 points)
The age of material on a tectonic plate depends in part on what type of crust it is composed of.
tends to be younger because it is continually produced at the
and then recycled. On the other hand,
tends to be older because it can often remain intact for longer periods.
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Answer 3

Here's the completed statement with the correct terms:

Oceanic crust tends to be younger because it is continually produced at the mid-ocean ridges and then recycled. On the other hand, continental crust tends to be older because it can often remain intact for longer periods.

Answer 4

Question
Use the drop-down menus to complete the sentences.(2 points)
At the Mid-Atlantic Ridge, magma
Earth’s crust, pushing the North American plate and the Eurasian plate
each other. Because of the movement of the plates, the Atlantic Ocean continuously becomes
.
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Answer 5

Here's the completed sentence:

At the Mid-Atlantic Ridge, magma rises through Earth’s crust, pushing the North American plate and the Eurasian plate away from each other. Because of the movement of the plates, the Atlantic Ocean continuously becomes wider.

Answer 6

How was the San Andreas Fault formed?(1 point)
Responses

consistent seismic activity
consistent seismic activity

the creation of land in a subduction zone
the creation of land in a subduction zone

two plates moving past each other
two plates moving past each other

the kinetic energy in a rift valley

Answer 7

The correct response is:

two plates moving past each other.

The San Andreas Fault was formed by the lateral movement of the Pacific Plate and the North American Plate sliding past each other.

Answer 8

Which is an example of physical weathering?(1 point)
Responses

bits of iron in rock rusting when exposed to oxygen and water
bits of iron in rock rusting when exposed to oxygen and water

microscopic organisms producing compounds that break down rock
microscopic organisms producing compounds that break down rock

lichen releasing a weak acid that dissolves rock
lichen releasing a weak acid that dissolves rock

a crack in rock growing larger as water freezes in it

Answer 9

The correct response is:

a crack in rock growing larger as water freezes in it.

This is an example of physical weathering, also known as mechanical weathering, where the physical processes cause the rock to break apart without changing its chemical composition.

Answer 10

Sort the characteristics into those which are true of bryophytes and those which are true of modern land plants. Drag each item to the correct location.(2 points)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Bryophytes Modern Land Plants
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Answer 11

Sure! Here’s how you can sort the characteristics.

Bryophytes:

1. Non-vascular
2. Require water for reproduction
3. Dominant gametophyte generation
4. Lack roots, stems, and leaves in a true sense

Modern Land Plants:

1. Vascular tissues (xylem and phloem)
2. Can be adapted to drier environments
3. Dominant sporophyte generation
4. True roots, stems, and leaves

Feel free to adjust as necessary!