Which of the following igneous rocks is/are NOT characteristics of mid-ocean ridges

Hi,I need help answering these four questions1. Which of the following igneous rocks is/are NOT characteristics of mid-ocean ridges? (I think the answer is D, but I wanted to confirm)A. FInely crystalline basaltic rocks that form in upright columns known as dikesB. Gabbro that solidified in a magma chamberC. Pillow basaltD. Andesite and Diorite2. Which of the following is characteristic of continental rifts?A. Some magmas are felsic and intermediateB. Heat from hot, mafic magma can melt continental crustC. Solid asthenosphere undergoes decompression meltingD. Choices A and B onlyE. Choices A, B, and C3. What occurs at mid-ocean ridges? (I think the answer is E, but I wanted to confirm)A. oceanic crust is destroyedB. continental crust is destroyedC. all crust is destroyed by magmaD. continental crust is createdE. oceanic crust is created4. Mid ocean ridges are elevated above the seafloor. The elevation of the seafloor:A. increases away from the mid-ocean ridge because of expansion of the rocks due to heatB. decreases away from the mid-oceanic ridge because of the cooling and contraction of the rocks.C. increases away from the mid-ocean ridge because of the cooling and contraction of the rocksD. decreases away from the mid-ocean ridge because of the expansion of the rocks due to heat}

 

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