Why was the global exchange important?

For what conditions is a Columbia titanium jacket ideal? Is ink a compound a solution or a mixture? Why is geosynchronous satellites above the equator? Can a Gram stain a prion? What metals are bendable? 0.75 meter of chain at 4.80 per meter? What is rational system of unit? How many sex chromosomes do humans have? Do non disposable cups keep water hotter than disposable? How weathering is helping the river to shape the land? Why are alkali metals rarely found as pure elements? Which planet takes 164.8 years to revolve around the solar system? What if you get 190 volts output from your house which last year the output voltage was 120 volts? Which discovery showed that Mendeleev was correct in organizing his table of elements according to properties? Which substance do scientists think was critical to the rise of life on early earth A amino acids B water C organic material D oxygen? What family of macromolecules require two different types of building blocks? How do you process oil? What role did transport protein play in? What is a large hole form when a cave collapse? What center of the local group is a collection of ancient stars referred to as?

Why was the global exchange important?