Understanding Convection Currents and Drift

What is the primary source of heat that drives convection currents in the Earth's mantle?

• Solar radiation

• Radioactive decay and residual heat from Earth's formation

• Ocean currents

• Wind patterns

In which layer of the Earth do convection currents primarily occur?

• Crust

• Core

• Mantle

• Atmosphere

What is the process called when tectonic plates move away from each other?

• Convergent

• Transform

• Divergent

• Subduction

Which of the following geological activities is NOT caused by the movement of tectonic plates?

• Earthquakes

• Volcanic eruptions

• Formation of mountain ranges

• Ocean tides

What was the name of the massive landmass that existed before the continents drifted to their current positions?

• Gondwana

• Laurasia

• Pangaea

• Atlantis

How do convection currents in the mantle affect tectonic plates?

• They cause the plates to remain stationary

• They create drag that causes the plates to move

• They cool the plates, making them brittle

• They dissolve the plates

Which type of plate boundary is associated with the sliding past of tectonic plates?

• Divergent

• Convergent

• Transform

• Subduction

What is the term used to describe the slow movement of continents over time?

• Continental drift

• Plate tectonics

• Seafloor spreading

• Erosion

Which of the following is a result of tectonic plate movement?

• Formation of deserts

• Creation of ocean currents

• Formation of mountain ranges

• Changes in weather patterns

What is the primary role of convection currents in the Earth's mantle?

• To regulate Earth's temperature

• To drive the movement of tectonic plates

• To create ocean currents

• To influence weather patterns