Understanding Plate Tectonics and Continental Formation

Who is credited with the discovery of plate tectonics?

• Marie Curie

• Alfred Wegener

• Isaac Newton

• Charles Darwin

What process is responsible for the formation of new oceanic crust?

• Weathering

• Sedimentation

• Seafloor spreading

• Erosion

What geological feature is formed by the subduction of one oceanic plate beneath another?

• Mountain ranges

• Island arcs

• Rift valleys

• Continental shelves

What type of rock is formed from the partial melting of basalt?

• Granite

• Diorite

• Sandstone

• Limestone

Which element is commonly found in the first melt during partial melting?

• Iron

• Calcium

• Magnesium

• Potassium

Which mountain range is an example of subduction-related volcanism?

• Himalayas

• Andes

• Rocky Mountains

• Appalachians

What geological process can lead to the formation of mountain ranges?

• Weathering

• Deposition

• Subduction

• Erosion

What is the primary composition of granite?

• Limestone, dolomite, calcite

• Sand, clay, silt

• Basalt, olivine, pyroxene

• Quartz, feldspar, mica

What is the result of continuous subduction and volcanic activity over millions of years?

• Development of coral reefs

• Growth of continental landmasses

• Creation of ocean trenches

• Formation of deserts

What is the primary difference between basalt and granite?

• Granite is lighter and contains more silica

• Basalt is denser and contains more magnesium and iron

• Basalt is lighter and contains more silica

• Granite is denser and contains more magnesium and iron