could you answers this please Physical Geology CHAPTER 13 -Chapter Review MULTIP

Question

could you answers this please

Physical Geology CHAPTER 13 -Chapter Review MULTIPLE CHOICE When an isolated m by A, the collision of two continental plates pressive farces acting on the opposing margins of a single plate C. the riftling of the continent. D. the growth of a volcanic are. E. A and D 2. Continents grow and evolve by addition of felsic and mafic crust, a process k A. addition B. accretion D. convergence E conformation. 3. Rocks deform in response to A. compressional stresses B tensional stresses C. shear stresses D. A and B E. all of the above Rocks exposed to compressional stress are A. squeezed by external forces directed toward one another B. shortened in the direction of stress C. faulted or folded D. all of the above Rocks strained beyond their elastic limit by compressional stresses will result in A. folding B. normal faulting C shearing D. volcanism E. isostatic rebound The type of strain which occurs depends not only on the kind of stress applied, but also on A. the amount of pressure and degree of temperature. B. the rock type. C. the duration of the stress D. A and C E. A and B 6. Rocks that exhibit the effects of plastic deformation A. must have originated along a divergent plate boundary B. must have been subjected to compressional stress C. must have occurred deep within the crust D. must have been associated with intrusive activity E. A and D 7. Plastic deformation would most likely be associated with A. igneous rocks 8. B. sedimentary rocks C. metamorphic rocks D. A and C E. B and C

Explanation / Answer

1 If we find an isolated mountain range in the interior of the continent then it can't be beacuase of two plate collision as it's in between the continent, it can't be because of rifting as we don't have rift valley, volcanic arcs don't exist in single therefore this is not possible and hence it is because of compressive force acting on the opposite margins of a single plate. Hence B is correct.

2. Accretion is growth or increase by the gradual accumulation of additional layers or matter which can be felsic or mafic and thus leads to the growth of the continent. Hence B is correct.

3. Rock can deform by any stress that acts on it and these stresses can be compression which leads to bulking up of rock material, can be tensional which tears up the rock by extensional force and shear stress when a part of rock moves past other parallely. Hence E is correct.

4. Rocks when subjected to compressional stress can squeeze them, and thus can shotened in the direction of stress can also fault(thrust fault) and fold (syncline and anticline). Hence D is correct.

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