Papermaking, printing, gundpower and the compass, the four great inventions of acient china was the first nation to prevent paper.
<span>an area in the middle of the ocean with lots of volcanoe
</span>Which best describes the abyssal zone?
NOT:
a small, deep area near the equator
a huge, dark, nearly lifeless part of the ocean
<span>a huge, dark area of the ocean full of living things</span>
Answer: The densest layer is the solid metal inner core,
Explanation:
The inner core is a hot, dense ball of (mostly) iron. It has a radius of about 1,220 kilometres (758 miles). ... The inner core's intense pressure—the entire rest of the planet and its atmosphere—prevents the iron from melting. The pressure and density are simply too great for the iron atoms to move into a liquid state.