____11. All of the following are commonly found in the Earth’s crust except ________.A. Calcium B. silicon C. oxygen D. iron____12. Complete this sentence: As you go deeper inside the Earth ____________________.A.It gets hotter, materials get denser and pressure increasesB. It gets cooler, drier and easier to travelC. The temperature increases but pressure decreasesD.The temperature stays the same but the pressure increases_____13. Which of these is an element commonly found in solid form within Earth’s crust?A. Nitrogen B. copper C. bronze D. steel____14. What are the two main types of crust?A. continental and oceanic C. lithosphere and asthenosphereB. solid and liquid D. thick and thin____15. Which of the following statements is NOT true about continental crust?A. It forms the continents.B. It can be found beneath the ocean.C. It is thicker and less dense than oceanic crust.D. It is up to 100 km thick.____16. Which layer is made up of mostly oxygen and silicon?A. Core B. mantle C. lithosphere D. asthenosphere_____17. What is the correct order of the layers of the Earth?A. Lithosphere, upper and lower mantle, asthenosphere, outer and inner coreB. outer and inner core, upper and lower mantle, lithosphere, asthenosphere C. Lithosphere, asthenosphere, upper and lower mantle, outer and inner coreD. upper and lower mantle, Lithosphere, asthenosphere, outer and inner core_____18. The lithosphere is broken into pieces called _______.A. Plates B. strata C. trenches D. atolls_____19. The crust and upper mantle of the Earth are together known as the ___________.A. Hydrosphere B. lithosphere C. biosphere D. asthenosphere_____20. Which layer of the earth is directly below the crust?A. Inner core B. mesosphere C. outer core D. mantle​