Plate tectonics and seafloor formation

What type of boundary occurs when two plates move away from each other?

• transform
• subduction
• convergent
• divergent

What forms at a divergent boundary between two oceanic plates?

• rift valley
• mountain
• mid-ocean ridge
• trench

Which type of crust is more dense?

• oceanic
• continental
• divergent
• pizza

What type of boundary occurs when two plates move toward each other?

• convergent
• divergent
• transform
• lateral

What forms at a convergent boundary between a continental plate and an oceanic plate?

• volcanoes
• rift valleys
• faults
• mid-ocean ridges

A rift valley occurs at a ____________ boundary.

• divergent
• convergent
• transform
• horizontal

A trench forms at a _________ boundary.

• convergent
• divergent
• transform
• vertical

Mountains form at a ___________ boundary.

• transform
• divergent
• convergent
• subduction

What type of boundary is shown at A?

• transform
• convergent
• divergent
• subduction

What is happening at point B?

• subduction
• a divergent boundary
• convection
• an earthquake