Plate boundaries - Study guides, Class notes & Summaries

What does plate tectonics refer to? correct answers It is a theory explaining the movement of the Earth's crust -Earth's crust is not solid but rather a bunch of pieces (or 'plates') that move on the surface of the Earth. Similar to cracked egg shell. We need all three boundary types for plates to move around Earth's surface: -Convection currents -- drives the movement -Mid-ocean ridge -- spreading center Subduction zones -- oceanic trench site of crust destruction What is the maj...

origin of earth - Answer-• Supernova: death of a star (great explosion) • Supernova happened 4.6 bya, dust and gas flattens to a disk and spins faster due to gravity and solar nebula formed. • Solar Nebula: describes formation of Earth 4.5 bya • Nebula: gas cloud origin of oceans - Answer-• volcanic explosion, H2O condensed and rained down for thousands of years to create oceans • icy comets hitting earth (responsible for 1/2 of earths ocean water) origin of life - Answer-•...

Part 1 of 2 - 48.0/ 52.0 Points Question 1 of 25 4.0/ 4.0 Points Which type of boundaries involve crust being neither created nor destroyed and shearing motion?  A. divergent boundaries  B. transform boundaries  C. convergent boundaries Feedback:2 Plate Tectonics Question 2 of 25 4.0/ 4.0 Points Continent to continent convergent boundaries are commonly associated with which landforms?  A. broad mountain range, folds  B. volcanic arc, forearc basin  C. oceani...

LUOA Earth Science Module 8 Questions and Answers 100% Pass Pangaea mean all the earth Alfred Wagoner found what in Africa,India,South America and Australia that showed him they were all covered in ice at some point ice striations why didn't scientist in 1912 take Alfred seriously? because there was no way the continents could plow through the ocean basin because they didn't know of a strong enough power because he wasn't a geologist Alfred Wegener proposed his idea of continental drift wh...

What is the hydrological cycle? - Answer Closed system driven by solar energy and gravitational potential. The 4 main erosion processes? - Answer Hydrolic action, Air trapped in rocks forces cracks open. Abrasion, rocks wearing down cliff. Attrition, rocks wearing down other rocks. Corrosion, weathering. Types of Beach landform? - Answer Storm beach, high energy deposition. Berms, summer swell deposition. Offshore ridges/bars, formed by destructive wave erosion and deposition...

Geology Exam 1(Reviewing plate tectonics, plate boundaries, volcanoes, and igneous rocks)Already Graded A+

LUOA Earth Science Module 8 (2023/2024) Already Passed Glossopteris was a temperate climate leaf fossil. He found it in Antarctica. How could this be? Because that fossil was supposed to have been in a temperate climate near the equator but instead was in Antartica, meaning that the continents have moved since the beginning of time. Alfred Wegener discovered rocks in the Appalachian Mountains matched rocks in _______________________. Europe and Greenland Originally, Wegener's hypothesis that...

Detailed and comprehensive notes on unit 1 topic 1 of Pearson Edexcel AS Level Geography (tectonic processes and hazards). Covers: structure of the earth, plate tectonic theory, plate boundaries, volcanoes, earthquakes, tsunamis. Case studies include: Eyjafjallajökull eruption (2010), Haiti earthquake (2010), Northridge California earthquake (1994), Japan tsunami (2011 and Indian Ocean tsunami (2004).

Why do earthquakes occur? correct answers - release of energy in response to a build up of stress along a fracture - energy released in sudden bursts due to stick-slip behavior Why do we see stick slip behavior? correct answers faults are not smooth so the jagged edge causes friction What are the four different types of faults? correct answers - normal faults (with gravity) - transform faults (sideways motion) - reverse faults (against gravity, high angle) - thrust faults (against grav...

PRAXIS II ELEMENTARY EDUCATION- SCIENCE EXAM 2024 WITH 100% CORRECT ANSWERS How many questions are this Praxis exam? - correct answer 50 What is the passing score I need to pass? - correct answer 159 (raw points 33) What are the layers of the earth? (from inside to out) - correct answer inner core, outer core, mantle and crust What is the inner core? - correct answer solid center of the earth, composed of iron and nickel (700-800 miles) What is the outer core? - correct answer a l...