Mantle convection - Study guides, Class notes & Summaries

OCR A-Level Geography Updated Exam | Questions and Answers 100% CORRECT What are the 3 layers of the Earth? Correct Answer: *Crust* *Mantle* *Core* (inner and outer) What separates the crust and the mantle? Correct Answer: *Moho* What 2 layers does the upper mantle consist of? Correct Answer: *Lithosphere* (semi-core) Varies in thickness Boundary with asthenosphere difficult to define (melts and becomes incorporated in asthenosphere) *Asthenosphere* extends 100-300km Sem...

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-•...

Physical Geology is the study of correct answers the materials that compose Earth and the ways in which they are organized and distributed throughout the planet a hypothesis must be testable so that correct answers it can be objectively evaluated, its accuracy can be independently assessed, its ability to make accurate predictions can be appraised, and it is possible to revise the hypothesis if it does not provide accurate predictions the rock cycle is correct answers a concept proposing t...

PRAXIS 5005 EXAM LATEST VERSION QUESTIONS AND ANSWERS ALL CORRECT What causes the seasons? - Answer-The tilt of the Earth's axis. The earths orbit is not a perfect circle. There are points in its cycle when its closer to the sun, and it does NOT dictate the weather What are the layers of the earth? (from the inside to the outside) - Answer-inner core, outer core, mantle, crust How did earth form? - Answer-a mass of dust and gas spinning as gravity pulled it together How did the con...

The Earth - origin of Earth, oceans, life; the Earth's internal layers... - origin of Earth, oceans, life; the Earth's internal layers... Origin of Earth, Oceans, Life: • Earth: Supernova (explosion of a star-4.6 bya)- earth (nebula made of gas and dust) was formed 4.5 billion years ago. • Oceans: Volcanic expulsion, rained for thousands of years then hit by icy comets; volcanic outgassing and ice from comets • Life: 3.7 billion years ago life was created- animals have been arou...

seismic waves - Answer-Vibrations that travel through Earth carrying the energy released during an earthquake. crust - Answer-the outer layer of the Earth mantle - Answer-the layer of hot, solid material between Earth's crust and core lithosphere - Answer-the solid, outer layer of the earth that consists of the crust and the rigid upper part of the mantle asthenosphere - Answer-the soft layer of the mantle on which the lithosphere floats basalt - Answer-a rock that makes up much ...

Texas Teacher Exam - Science minerals - ANS ️️ A solid inorganic substance of natural occurrence. tectonic plates - ANS ️️ Sections of the Earth's crust that move due to convection currents. tectonic plates - ANS ️️ pieces of the lithosphere that move around on top of the asthenosphere oceanic crust - ANS ️️ earths crust located under the ocean. The thinnest type of crust. Mostly basalt continental crust - ANS ️️ thicker, less dense crust making the continents magne...

Introduction to Earth Science Questions and Answers with Complete Solutions What is Geology? The study of Earth's composition, structure, processes, and history. Which element is the second most abundant in the Earth's crust? Silicon What is the Upper Mantle? Part of the lithosphere and tectonic plates Describe the Inner Core. A solid, dense layer made primarily of iron and nickel. Explain the generation of Earth's magnetic field. Produced by the convection of mo...

EARTH SCIENCE FINAL EXAM QUESTIONS AND ANSWERS List the 3 main layers of the earth from the center to the outside based on composition (what they are made out of). - Correct Answer ️️ -1). Core (Inner and outer)-solid inner liquide outer. Iron/nickel alloy. Extreme pressure 2).Mantle-82% of the earth's volume-Solid, rocky, shell 3). Crust (Oceanic-younger rocks and Continental-granite rocks) List the 5 mechanical layers of the earth (based on how they deform?) Whic layers is a liqui...

Earth Science Exam Review 2024 with Complete Solutions seismic waves - Correct Answer ️️ -Vibrations that travel through Earth carrying the energy released during an earthquake. crust - Correct Answer ️️ -the outer layer of the Earth mantle - Correct Answer ️️ -the layer of hot, solid material between Earth's crust and core lithosphere - Correct Answer ️️ -the solid, outer layer of the earth that consists of the crust and the rigid upper part of the mantle asthenosphere ...