Rev Flashcards
What is the structure of the earth and the properties of each of the layers?
The Earth comprises the crust (continental and oceanic), mantle (solid, flowing rock), and core (liquid outer core, solid inner core)
what was Wegner’s theory and what was his evidence?
Wegener thought all continents were once joined in a big land called Pangaea. His proof included matching coastlines, similar rocks, and the same fossils on continents now apart.
What are the names and locations of major plates and plate boundaries?
tectonic plates include the Pacific Plate, North American Plate, South American Plate, Eurasian Plate, African Plate, Indo-Australian Plate, and Antarctic Plate.
explain why earthquakes and volcanoes are often found at plate boundaries?
Earthquakes and volcanoes occur at plate boundaries due to the interaction and movement of tectonic plates.
What are convection currents and why are they important?
Convection currents are fluid movements driven by temperature variations. They’re vital for processes like plate tectonics and impact weather patterns by redistributing heat.
explain how earthquakes are measured? (Richter and Mercalli)
based on observable earthquake damage & of the largest wave recorded by a seismometer and the distance from the earthquake.
explain what happens at convergent boundries
Convergent boundaries: Plates collide, causing earthquakes and forming volcanoes like the Andes.
What happens at divergent boundaries
Plates move apart, triggering earthquakes and creating new crust, with examples like the Mid-Atlantic Ridge.
explain the impacts and responses from the Haiti Earthquake case study?
Haiti’s 2010 earthquake led to widespread destruction. International aid, rescue operations, and long-term recovery efforts were vital responses to address the challenges of infrastructure damage and loss of life.
User
Explain why the impacts of the Haiti were so bad.
The 2010 Haiti earthquake had severe impacts due to weak infrastructure, poverty, and limited preparedness, resulting in widespread casualties and hindering effective response and recovery.
Can I explain the causes and impact of a tsunami in an example location?
Tsunamis, triggered by events like undersea earthquakes, lead to widespread destruction, causing loss of life and infrastructure damage, with more severe consequences in economically disadvantaged areas due to limited resources.
Can I explain how prediction, preparation and protection can reduce tectonic
hazards?
By predicting earthquakes early, preparing communities through education and drills, and building structures that can withstand seismic forces, we can make tectonic events less harmful.
What is nuclear power? How does it work?
Necluer powe is used to create weapons of whatnot and the ability to destroy countries and wipe them out
What is nuclear power
Nuclear power is electric power generated by a nuclear reactor.
