Which statement about earthquakes is accurate? Select the two correct answers.(1 point)

Question

Responses

About 100 earthquakes per year are strong enough to cause damage.
About 100 earthquakes per year are strong enough to cause damage.

Most earthquakes are not strong enough to be felt by humans.
Most earthquakes are not strong enough to be felt by humans.

More than 1 billion earthquakes happen per year.
More than 1 billion earthquakes happen per year.

A few hundred earthquakes per year are strong enough to be detected by instruments.
A few hundred earthquakes per year are strong enough to be detected by instruments.

Fewer than 100,000 earthquakes happen per year.

Answer 1

The two accurate statements about earthquakes are:

1. Most earthquakes are not strong enough to be felt by humans.
2. A few hundred earthquakes per year are strong enough to be detected by instruments.

The other statements either exaggerate the number of earthquakes or are incorrect regarding their impact.

Answer 2

What main process do all volcanoes have in common, regardless of the specific ways they form?(1 point)
Responses

rising magma
rising magma

plate subduction
plate subduction

hotspots
hotspots

plate divergence

Answer 3

The main process that all volcanoes have in common, regardless of the specific ways they form, is rising magma. This process leads to the formation of volcanic eruptions and the creation of volcanic landforms.

Answer 4

Which features would you look for to classify a volcano? Select the three correct answers. (2 points)
Responses

height
height

steepness
steepness

color
color

type of lava
type of lava

presence of foliage
presence of foliage

age of rock

Answer 5

To classify a volcano, the three correct features to look for are:

1. Height
2. Steepness
3. Type of lava

These characteristics help differentiate between various types of volcanoes, such as shield volcanoes, stratovolcanoes, and cinder cone volcanoes.

Answer 6

What will happen where two continental plates collide at a convergent boundary?(1 point)
Responses

One plate is subducted beneath the other.
One plate is subducted beneath the other.

The direction shifts and it becomes a transform boundary.
The direction shifts and it becomes a transform boundary.

The plates push up, forming a mountain range.
The plates push up, forming a mountain range.

A volcanic island arc is formed.

Answer 7

When two continental plates collide at a convergent boundary, the plates push up, forming a mountain range. This process does not involve subduction as in oceanic-continental collisions; instead, the collision of continental plates leads to the formation of large mountain ranges, such as the Himalayas.

Answer 8

Which information is needed to construct a geomagnetic time scale? Select the two correct answers.(1 point)
Responses

the magnetic direction of rocks along the surface of Earth
the magnetic direction of rocks along the surface of Earth

the length of the mid-oceanic ridge
the length of the mid-oceanic ridge

the average speed of tectonic plates on Earth
the average speed of tectonic plates on Earth

the age of rocks along the surface of Earth
the age of rocks along the surface of Earth

Answer 9

To construct a geomagnetic time scale, the two correct pieces of information needed are:

1. The magnetic direction of rocks along the surface of Earth
2. The age of rocks along the surface of Earth

These factors provide data on how the Earth's magnetic field has changed over time and allow for the dating of these magnetic reversals.

Answer 10

At which type of plate boundary would a string of small volcanic islands most likely form?(1 point)
Responses

divergent ocean-ocean boundary
divergent ocean-ocean boundary

transverse boundary
transverse boundary

convergent ocean-land boundary
convergent ocean-land boundary

convergent ocean-ocean boundary

Answer 11

A string of small volcanic islands would most likely form at a convergent ocean-ocean boundary. In this setting, one oceanic plate is subducted beneath another, leading to the formation of volcanic island arcs as magma rises to the surface and creates a series of volcanic islands. Examples include the Aleutian Islands in Alaska and the islands of Japan.