The ____________ is (are) an example of a transform boundary.

Appalachian Mountains San Andreas Fault Mid-Atlantic Ridge Himalaya

San Andreas Fault

On which of Earth’s layers do we live?

the crust

Which geologic feature was most likely formed when two lithospheric plates collided?

Grand Canyon Lake Michigan Sierra Madre mountain range Mississippi River delta

Sierra Madre mountain range

Where can the result of plate movement be seen?

at plate boundaries

The Great Rift Valley in Africa is a ________ boundary.

divergent

Which layer of the Earth is made mostly of liquid metal?

layer 3

Plates slide past one another at ________ boundaries.

transform

The Himalaya Mountains formed from a collision of the Indo-Australian plate with the Eurasion plate. Which best approximates the rate of movement of the Indo-Australian plate?

0.67 mm per year 6.7 cm per year 6.7 meters per year 67 meters per year

6.7 cm per year

The thickest layer of the Earth contains about 80% of the volume of Earth. What is this layer?

the mantle

Plates move apart at __________ boundaries.

divergent

The crust and upper mantle make up Earth’s _________________.

lithosphere

Scientists theorize that millions of years ago South America and Africa formed a single land mass.

Which statement best describes why South America and Africa are now thousands of miles apart?

Strong winds continually pushed the land masses away from each other.

Ocean currents carried some land masses east and some west.

Lithospheric plates moved the continents apart at a rate of centimeters per year

Tectonic plates slid together forming mountains that forced the continents apart.

Lithospheric plates moved the continents apart at a rate of centimeters per year

The Andes Mountains of South America were gradually formed when the Nazca and South American tectonic plates collided. Which of these caused this collision?

movement of the material in Earth’s core changes in Earth’s magnetic field convection currents in the Earth’s mantle volcanic activity in the Earth’s crust

convection currents in Earth’s mantle

Which layer of Earth is composed mainly of liquid water and different types of rock crystals such as quartz?

the crust

Which is the best description of where earthquakes are likely to occur?

along a coastline in the middle of an ocean in the middle of a continent along two plate boundaries

along two plate boundaries

Scientists place devices for communicating with satellites on the edge of continents. Two devices were placed on continents where lithospheric plates are moving apart. If these lithospheric plates are moving at a typical rate, about how much farther apart from each other will the devices be in 10 years?

1 cm, 100 cm, 10 m, or 1 km

100 centimeters

Active volcanoes are most likely to form at ______________.

the center of continents convergent oceanic-continental

boundaries transform boundaries divergent boundaries

convergent oceanic-continental boundaries

The thinnest layer of the Earth ranges in thickness between 7 kilometers and 70 kilometers. Which layer is being described?

the crust

Scientists have observed that the plates move at rates ranging from 1 cm to 12 cm per __________.

year

_______________ are formed when two continental plates collide.

mountain ranges

Which of these best describes the composition of the inner core of Earth?

solid iron and nickel liquid iron and nickel carbon dioxide and ice quartz and oxygen

solid iron and nickel

The boundary between two plates moving together is called a _____________ boundary.

convergent

Scientists theorize that the Atlantic Ocean is slowly increasing in width. Which is the best approximation of the rate at which lithospheric plates beneath the Atlantic Ocean are moving?

2 mm per year 2 cm per year 2 meters per year 2 km per year

2 centimeters per year