Magma formation - Study guides, Class notes & Summaries

MSCI 112 Final Exam Questions And Answers Latest Top Score. An igneous rock was formed with 8000 radioactive (parent) atoms but contains only 1000 radioactive (parent) atoms today. If the half-life for the radioactive element is 10 million years, the rock is ___ million years old. - correct answer. 30 Which of the common components of siliciclastic sediment are likely to have been formed from the original sediment source rock through chemical weathering? - correct answer. cla...

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-•...

Geology 111 Exam Questions With Verified Solutions Tectonic processes - answerupwelling of magma, plate movement, subduction of crust, folding, faulting, warping, fracturing, earthquakes, volcanic activity, magmatism, ocean ridges, rift valleys, trenches, collision, continental rifting, mountain formation Tectonic characteristics - answerLandforms: volcanoes, earthquakes, faults, mountain ranges, mid ocean ridge, deep ocean trenches, rift valleys Earthquakes occur - answerWhen brittle roc...

Explain how tectonic processes lead to the formation of an underwater volcano - ANS divergent plates / description ; hot gases / molten rock / lava / magma + rises / erupts ; lava cools / solidifies / hardens to form rock ; Describe the mutualistic relationship between these algae (zooxanthellae) and the coral. - ANS any 3 of: algae photosynthesise ; produce oxygen / glucose / sugars / carbohydrates / organic compounds / amino acids for coral ; corals provide protection fo...

DSST Test Questions The ability of a mineral to resist scratching is called - hardness The breaking of a mineral along definite planes is called - cleavage The two most abundant elements in the earth's crust are - oxygen and silicon Which of the following internal crystalline structure of minerals does not have three axes at right angles to one another? - monoclinic Ore minerals contain - a useful metal or nonmetal that is easily extracted The two most important identifying c...

Geology 111 Exam Questions With Verified Solutions Tectonic processes - answerupwelling of magma, plate movement, subduction of crust, folding, faulting, warping, fracturing, earthquakes, volcanic activity, magmatism, ocean ridges, rift valleys, trenches, collision, continental rifting, mountain formation Tectonic characteristics - answerLandforms: volcanoes, earthquakes, faults, mountain ranges, mid ocean ridge, deep ocean trenches, rift valleys Earthquakes occur - answerWhen brittle roc...

About how many Near Earth Asteroids are we currently tracking - 20,000 we are currently tracking How a caldera forms - a large circular depression formed when the surface collapses into an emptied magma chamber How core formation leads to an increase in internal temperature - the motion of the falling iron is converted into deformation at the surface of the growing core, producing heat How heat is transferred with conduction, convection, and radiation - convection: heat transfer through fl...

Marine Biology – 3 Questions and Answers Already Passed The solar system formed ____ billion years ago. 5 It has been proposed that the first living organisms were: heterotrophs The first heterotrophs obtained their energy from: chemosynthetic organisms. The ocean is frequently referred to as: world ocean. A body of salt water that is more or less landlocked is called: a sea. The thickest of Earth's physical layers is the: mantle. The region of the mantle below the crust is called: the ...

Solar System - Science Olympiad Exam Questions And Answers (Verified And Updated) How did the terrestrial planets form? - answerIn the proto-Solar-Sytem, after the sun formed, the rest of the materials orbiting close around it began to clump together too. However, closer to the sun, lighter materials like gases blew away and only rocky material was left, causing the four terrestrial planets, and some of their moons, to form. What are the characteristics of Terrestrial Planets? - answerSol...

Praxis 5005 (Science) Kathleen Jasper Purple Book Notes and Information Already Graded A Mantle Is not liquid, but ductile or plastic, which means that some parts can flow under certain conditions and changes in pressure. Composed mainly of aluminum and silicates Crust The outermost solid layer of earth. It is the lithosphere. Core The innermost layers of the Earth. Mainly composed of nickel and iron Inner Core Solid. Temperatures and pressures are extreme. Outer Core A layer of liquid iron...