Answer:
Paleomagnetism also provides evidence to support theories in plate tectonics. Because the ocean floor is mostly composed of basalt, an iron-rich substance containing minerals that align with the magnetic field, they record the alignment of the magnetic fields surrounding oceanic ridges.
Answer:
La migración humana es el movimiento de las personas desde un lugar hasta otro, con la intención de fijar su residencia en el destino de forma permanente o semipermanente. La migración es un componente muy importante del cambio, la estructura y el crecimiento poblacional, así como lo son la natalidad y la mortalidad
Explanation:
The main cause was the assassination of Franz Ferdinand who was the archduke of Austria. He was assassinated by Gavriollo Princip who was Austrian - Hungarian. Those two countries were constantly in conflict because Hungary wanted to separate and once those countries went into war over the assassination their allies had to join being the rest of Europe. <span />