Earth's geosphere contains 99.94% of its mass. Hope this helps!
89 percent of the ocean would be sea ice
The Inca empire was based in Peru. Note that the empire spread in more countries then just the seat of the empire, like Ecuador, Bolivia, Colombia, Chile and Argentina.
<span>His opportunity cost is to give up the next best thing, in this case the digital camera. It is called a trade-off between cell phone and digital camera. But I could not imagine that it is a big one, compared to efficiency and equality.</span>
1 is Improving knowledge of other cultures
