Podcast
Questions and Answers
What percentage of the Earth's internal heat is contributed by the decay of radioactive elements?
What percentage of the Earth's internal heat is contributed by the decay of radioactive elements?
- 80%
- 50% (correct)
- 30%
- 20%
What is the process by which the melting point of rocks is decreased by diluting in water or carbon dioxide?
What is the process by which the melting point of rocks is decreased by diluting in water or carbon dioxide?
- Flux Melting (correct)
- Contact Metamorphism
- Gravitational Pressure
- Partial Melting
What is the term used to describe the process of rocks melting due to differences in their melting points?
What is the term used to describe the process of rocks melting due to differences in their melting points?
- Contact Metamorphism
- Flux Melting
- Volcanism
- Partial Melting (correct)
What pattern do the active fractures in the Lithosphere along the ocean floor exhibit?
What pattern do the active fractures in the Lithosphere along the ocean floor exhibit?
What is the age of the oldest seafloor rock found?
What is the age of the oldest seafloor rock found?
What is the term used to describe the formation of composite volcanoes around the subduction zones of the Pacific plate?
What is the term used to describe the formation of composite volcanoes around the subduction zones of the Pacific plate?
What is the result of chemical weathering in cave systems with high Calcium content?
What is the result of chemical weathering in cave systems with high Calcium content?
What is the process of weathering where water reacts with CO2 to form weak acids?
What is the process of weathering where water reacts with CO2 to form weak acids?
What is the term for the expansion of moisture inside rocks, causing lattice and fractures in the rock?
What is the term for the expansion of moisture inside rocks, causing lattice and fractures in the rock?
What is the temperature range of the Crust?
What is the temperature range of the Crust?
What is the process of geological activities taking place below the Earth's surface?
What is the process of geological activities taking place below the Earth's surface?
What is the relationship between pressure and melting point?
What is the relationship between pressure and melting point?
What happens to sediments as oceanic crust subducts?
What happens to sediments as oceanic crust subducts?
What is the result of the higher silicon content in magma?
What is the result of the higher silicon content in magma?
What is observed on either side of the mid-ocean ridge?
What is observed on either side of the mid-ocean ridge?
What is the stage of an ocean basin when a rift valley is formed?
What is the stage of an ocean basin when a rift valley is formed?
What happens to a narrow sea as continents diverge?
What happens to a narrow sea as continents diverge?
What is the current stage of the Atlantic Ocean?
What is the current stage of the Atlantic Ocean?
What occurs when an ocean is surrounded by converging continents?
What occurs when an ocean is surrounded by converging continents?
What is the result of the collision of continents?
What is the result of the collision of continents?
What is the primary function of index fossils?
What is the primary function of index fossils?
What is the term for the process of ocean basin materials melting back into the mantle?
What is the term for the process of ocean basin materials melting back into the mantle?
Why do continents hold greater amounts of evidence of geological history?
Why do continents hold greater amounts of evidence of geological history?
What is the term for the process when an ocean turns into a sea?
What is the term for the process when an ocean turns into a sea?
