The inner core is solid because it is made of very dense, or heavy, materials - like iron and nickel. Even though it is very hot, these materials don't "melt" very easily, so they stay solid. Also, pressure due to the weight of the mantle and crust, atoms are forced together as solid.
Answer:
Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.
Explanation:
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Answer:
They are important for: Earth history. Sedimentary rocks contain features that allow us to interpret ancient depositional environments, including the evolution of organisms and the environments they lived in, how climate has changed throughout Earth history, where and when faults were active, etc. Economic resources..
Answer:
B. The "Ring of Fire" around the Pacific Ocean.
Explanation:
The "Ring of Fire" around the Pacific Ocean is the best example of a convergent boundary where an oceanic plate and continental plate meets.
- At such margins, subduction is the order of the day.
- Due to the differences in the density of the plates involved, the oceanic plates goes beneath the continental plate.
- The pacific sea floor is ocean crust and it is denser.
- As it slides beneath the continental crust, subduction zones are created.
- This circular geometry of the subduction zone is known as the pacific ring of fire.