2. What is called the area which is between mantle and Core?
3. Do the pressure and weight of rocks start increasing with depth? Why?
4. Write any two Minerals found on the crust.
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- The core–mantle boundary (CMB in the parlance of solid earth geophysicists) of the Earth lies between the planet's silicate mantle and its liquid iron-nickel outer core. This boundary is located at approximately 2891 km (1796 mi) depth beneath the Earth's surface.
- Pressure changes with depth in the Earth as a result of the increased weight of the overlying rock. Increased pressure drives minerals to form more compact phases, driving for example coal to change into diamonds, and clay to rubies.
- Chemical elements in the crust. The most common chemical elements in the crust are oxygen (46.6%), silicon (27.7), aluminum (8.1), iron (5.0), calcium (3.6), potassium (2.8), sodium (2.6), and magnesium (2.1). These figures vary among different studies because we really have no way to know for sure.
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Answer:
4.oxygen,silicone, aluminium......
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