Answer:
It helped them find their way to new countries by land and water.
Explanation:
Answer:
https://www.investopedia.com/terms/a/absoluteadvantage.asp
Blue stars are always the hottest
Foremost of these are magma viscosity, gas loss and external properties such as conduit geometry. Ultimately, these parameters control the speed at which magmas ascend, decompress and outgas en route to the surface, and thus determine eruptive style and evolution.
