Department of Science Quiz

A vast, under water mountain chain is called a(n)_________.

• deep-seatrench

• oceaniccrust

• oceanridge

• oceanfloorsediment

A break in Earth’s lithosphere along which movement occurs is called a(n)____.

• fault

• earthquake

• strain

• stress

Which of the following is a massive piece of land that is part of the Earth's crust and upper mantle?

• Tectonic plates

• Trenches

• Divergent boundary

• Continental shelves

What device do scientists use to map the ocean floor?

• Echo sounder

• Compass
• GPS
• Radar

Old sea floor is always found near the_____________

• mountain ranges
• oceanic trenches

• volcanoes
• deserts

A location where two tectonic plates collide is known as a ___________boundary.

• divergent
• convergent
• transform
• subduction

New crust is always formed at the mid ocean ridge

• True
• False

Ocean floor is flat

• True
• False

What is sea floor spreading?

• The process of removing sediment from the ocean floor
• The process by which new oceanic crust is formed and moves away from the mid-ocean ridge.
• The movement of tectonic plates towards each other
• The formation of new landmass on the ocean floor

What is the meaning of divergent boundary?

• A boundary where tectonic plates move towards each other
• A boundary where tectonic plates slide past each other horizontally
• A linear feature between two tectonic plates moving away from each other
• A boundary where tectonic plates are stationary and do not move