Geological Processes and Earth's History

The video explores the changes in Earth since its origin, estimated to be over 4.5 billion years old. It discusses the DUS Cloud hypothesis for Earth's formation and the processes that led to its differentiation into layers. The video also covers the formation and drift of continents, highlighting the supercontinents Gondwana and Laurasia, and the eventual breakup of Pangia. It explains how natural forces like volcanic activity and erosion have continuously reshaped Earth's surface, providing evidence of these changes through fossils and geological formations.

What is the estimated age of the Earth according to geologists?

• 6.5 billion years

• 5.5 billion years

• 4.5 billion years

• 3.5 billion years

Which hypothesis is widely accepted for the formation of the solar system?

• Big Bang Theory

• Dus Cloud Hypothesis

• Steady State Theory

• String Theory

What is the primary cause of Earth's internal heat?

• Solar radiation

• Heat from the sun

• Friction from tectonic plates

• Radioactive decay

What process describes the reorganization of Earth's materials into layers?

• Sedimentation

• Differentiation

• Erosion

• Metamorphism

What were the names of the supercontinents in the Southern and Northern Hemispheres?

• Atlantis and Lemuria

• Gondwana and Laurasia

• Avalonia and Baltica

• Pangaea and Eurasia

What term describes the movement of continents over time?

• Seafloor Spreading

• Plate Tectonics

• Subduction

• Continental Drift

How do scientists deduce the movement of continents?

• By analyzing fossil records

• By measuring magnetic fields

• By studying ocean currents

• By observing weather patterns

Which natural events are direct evidence of internal disturbances within the Earth?

• Floods and Tsunamis

• Volcanoes and Earthquakes

• Droughts and Wildfires

• Tornadoes and Hurricanes

What geological process is responsible for the formation of mountains from ocean floors?

• Erosion

• Volcanic Activity

• Tectonic Uplift

• Sedimentation

What evidence suggests that the ocean floor was once raised to form mountains?

• Discovery of ancient shipwrecks

• Presence of marine fossils on mountaintops

• Formation of coral reefs

• Existence of underwater volcanoes