Earth Science-Exam 1 Questions and Answers 100% Pass

Earth Science-Exam 1 Questions and Answers 100% Pass What are the two different kinds of crust? - Correct Answer ️️ -Oceanic and Continental Which crust is denser? - Correct Answer ️️ -Oceanic Which crust is thicker? - Correct Answer ️️ -Continental What specific type of rock is each type of crust made of? - Correct Answer ️️ - Continental-granite Oceanic-basalt What layer contains the crust and the upper mantle? - Correct Answer ️️ -Lithosphere What is unusual about the Asthenosphere? - Correct Answer ️️ -It is partially melted What happens when 2 oceanic plates collide? - Correct Answer ️️ -The denser of the 2 plates will subduct to the asthenosphere What feature is produced from the colliding of the continental and oceanic plate? - Correct Answer ️️ -volcanic Island Arc Why does an oceanic plate ALWAYS subduct beneath the continental plate? - Correct Answer ️️ -Because the continental plate is light and cannot sink into the mantle the oceanic plate will always be the denser of the 2 Along what type of plate boundaries does explosive(intermediate-felsic) volcanism occur? - Correct Answer ️️ -convergent p.b Along what type of p.b does passive(mafic) volcanism occur? - Correct Answer ️️ - divergent p.b Where along the 48 states is plate collision currently taking place? - Correct Answer ️️ -California, Oregon and Washington What feature has formed as a result of this collision? - Correct Answer ️️ -continental volcanic arc-cascade range What and where is the most famous transform p.b. in North America? - Correct Answer ️️ -san andreas fault in central and southern California What is a hot spot? - Correct Answer ️️ -Huge column of every hot rock rising from great depth; a volcanic zone located about hot rising plumes Where are the two hot spots in the USA? - Correct Answer ️️ -Hawaii and Wyoming What 5 qualifications must be met for a substance to qualify as a mineral? - Correct Answer ️️ -a. solid b. naturally occurring c. inorganic d. definite chemical composition e. specific internal composition Define the 4 MAJOR physical properties of minerals - Correct Answer ️️ -luster- the way that light reflects off of a mineral color, streak, and hardness-a minerals resistance to scratching What 3 factors influence the physical properties of minerals? - Correct Answer ️️ - chemical composition, specific internal structure and strengths of the chemical bonds holding the atoms together What is the difference btwn magma and lava? - Correct Answer ️️ -magma- exists within the earths surface lava- exists upon earths surface What are the 2 kinds of igneous rock? - Correct Answer ️️ -plutonic and volcanic What feature distinguishes the 2 different igneous rocks from each other? - Correct Answer ️️ -texture What 2 characteristics of an igneous rock MUST be determined before it can be accurately named? - Correct Answer ️️ -composition and texture What is meant by the TEXTURE of an igneous rock? - Correct Answer ️️ -the size of the crystals in the rock What single factor determines whether a rock will acquire a coarse or fine texture? - Correct Answer ️️ -the speed at which the magma's cooling What does the word COMPOSITION mean when applied to igneous rock? - Correct