Plate tectonics review

Question 1 The ____________ is (are) an example of a transform boundary. Appalachian Mountains San Andreas Fault Mid-Atlantic Ridge Himalaya

Answer 1 San Andreas Fault

Question 2 On which of Earth’s layers do we live?

Answer 2 the crust

Question 3 Which geologic feature was most likely formed when two lithospheric plates collided? Grand Canyon Lake Michigan Sierra Madre mountain range Mississippi River delta

Answer 3 Sierra Madre mountain range

Question 4 Where can the result of plate movement be seen?

Answer 4 at plate boundaries

Question 5 The Great Rift Valley in Africa is a ________ boundary.

Answer 5 divergent

Question 6 Which layer of the Earth is made mostly of liquid metal?

Answer 6 layer 3

Question 7 Plates slide past one another at ________ boundaries.

Answer 7 transform

Question 8 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

Answer 8 6.7 cm per year

Question 9 The thickest layer of the Earth contains about 80% of the volume of Earth. What is this layer?

Answer 9 the mantle

Question 10 Plates move apart at __________ boundaries.

Answer 10 divergent

Question 11 The crust and upper mantle make up Earth’s _________________.

Answer 11 lithosphere

Question 12 Scientists theorize that millions of years ago South America and Africa formed a single land mass.

Question 12 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.

Answer 12 Lithospheric plates moved the continents apart at a rate of centimeters per year

Question 13 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

Answer 13 convection currents in Earth’s mantle

Question 14 Which layer of Earth is composed mainly of liquid water and different types of rock crystals such as quartz?

Answer 14 the crust

Question 15 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

Answer 15 along two plate boundaries

Question 16 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

Answer 16 100 centimeters

Question 17 Active volcanoes are most likely to form at ______________. the center of continents convergent oceanic-continental boundaries transform boundaries divergent boundaries

Answer 17 convergent oceanic-continental boundaries

Question 18 The thinnest layer of the Earth ranges in thickness between 7 kilometers and 70 kilometers. Which layer is being described?

Answer 18 the crust

Question 19 Scientists have observed that the plates move at rates ranging from 1 cm to 12 cm per __________.

Answer 19 year

Question 20 _______________ are formed when two continental plates collide.

Answer 20 mountain ranges

Question 21 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

Answer 21 solid iron and nickel

Question 22 The boundary between two plates moving together is called a _____________ boundary.

Answer 22 convergent

Question 23 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

Answer 23 2 centimeters per year