Question

4) Stretching and thinning of the crust results from... a) Brittle deformation and tensional stress conditions. b) Ductile deformation and tensional conditions. c) Brittle deformation and shearing conditions. d) Ductile deformation and compressive conditions. 5) Geothermal resources are found mainly within what type of tectonic environments?! a) Divergent b) Convergent c) Strike-slip d) There is no preferential tectonic environment 6) The youngest geothermal heat sources are referred to as ... a) Active b) Recent c) Inactive d) Extinct

Answer 1

ans4: Rocks near the surface of the earth behave in brittle manner.Crustal rocks are basically quartz,feldspar have low pressure and temperature so they have brittle deformation.Option a is correct

ans 5: Subduction zones are the sources of mechanical and heat energy and they are found on divergent boundaries.So geothermal sources are on divergent boundary

ans 6: option b