Science plate tectonics and volcanoes

1. Who is the scientist who said that the continents were once joined togetherin a single landmass.

• Darwin

• Wegener

• Plate Tectonic

• Clear

2. What is Wegener's theory name?

• Continental drift

• Plate Tectonic

• sea floor spreading

• oceanic crust

Technology used in the mid 1900's to map the mid ocean ridge

• plate tectonic

• oceanic crust

• molten material

• sonar

Old oceanic crust is (a)   than new oceanic crust

The movement on Earth's plates is caused by (a)   currents in the mantle.

Geological theory that states that pieces of Earth's litosphere are in constant, slow motion.

• oceanic crust

• wegener

• plate tectonic

• continental drift

A collision between 2 pieces of continental crust at converging boundary produces a

• mountain range

• continental crust

• litosphere

• boundary

Place where two plates slip past each other is known as

• ocean ridge

• ocean crust

• mountain range

• transform boundary

What is the process that continually adds new crust to the ocean floor along mid-ocean ridges?

• molten material

• plate tectonic

• sea floor spreading

• deep ocean trench

When continental plates pull apart a (a)   boundary on land, plates form.