2. Why is oceanic crust generally younger than continental crust? a) It forms more quickly b) It is constantly being recycled at plate boundaries c) It is less dense d) It is thinner 3. How does the composition of oceanic crust differ from continental crust? a) Oceanic crust is mainly basalt, continental crust is mainly granite b) Oceanic crust is mainly granite, continental crust is mainly basalt c) Both are made of the same materials d) Oceanic crust is mostly sedimentary, continental crust is mostly igneous 4. What process occurs at divergent plate boundaries? a) Mountain building b) Subduction of oceanic crust c) Formation of new ocea d) Transform faulting 5. Which type of plate boundary is most likely to produce earthquakes but little a) Convergent boundaries b) Divergent boundaries 6. How does the thickness of oceanic crust.co c) Transform boundaries d) Subduction zones
Answer (1)
Answer:Here are the answers to your questions:2. Why is oceanic crust generally younger than continental crust?Answer: b) It is constantly being recycled at plate boundaries(Oceanic crust is formed at mid-ocean ridges and is eventually recycled into the mantle at subduction zones, leading to its younger age compared to continental crust.)3. How does the composition of oceanic crust differ from continental crust?Answer: a) Oceanic crust is mainly basalt, continental crust is mainly granite(Oceanic crust primarily consists of basalt, while continental crust is predominantly composed of granite.)4. What process occurs at divergent plate boundaries?Answer: c) Formation of new ocean(Divergent boundaries are where tectonic plates move apart, leading to the formation of new oceanic crust at mid-ocean ridges.)5. Which type of plate boundary is most likely to produce earthquakes but little volcanic activity?Answer: c) Transform boundaries(Transform boundaries involve the lateral sliding of plates past each other, leading to earthquakes but minimal volcanic activity.)6. How does the thickness of oceanic crust compare to continental crust?Answer: Oceanic crust is generally thinner than continental crust.(Oceanic crust typically ranges from about 5 to 10 kilometers thick, while continental crust can range from 30 to 70 kilometers thick.)
