<span>Seismic waves are the waves of energy caused by the sudden breaking of rock within the earth or an explosion. They are the energy that travels through the earth and is recorded on seismographs.
Source: OS</span>
The features of social democracy that are common in Europe are mainly universal health care and tuition-free college. Europeans also get the minimum living wage. They benefit from these features with a cost. Citizens, most especially the rich ones, pay higher taxes to fund these necessary benefits.
Fossils.
Early in the 20th century, Alfred Wegener, primarily, established the continental drift theory. According to Wegener, continents are mobile on the surface of the Earth and were previously connected to form a single supercontinent. Scientists did not think that the continents could migrate when Wegener was alive.
In rocks that are the same age but on continents that are currently far apart, ancient fossils of the same species of extinct plants and animals can be found. Wegener claimed that the species had coexisted, but that once they died and become petrified, the lands had separated. According to his theory, the creatures couldn't have crossed the seas.
1. Glossopteris seed fern fossils were too heavy for the wind to carry them that far.
2. Mesosaurus was a reptile that could swim, although it could only do it in freshwater.
3. The terrestrial reptiles Cynognathus and Lystrosaurus were incapable of swimming.
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The first step in the formation of a hotspot volcano is lava erupts and forms an island. Magma<span> generated by the </span>hot spot<span> rises through the rigid plates of the </span>lithosphere<span> and produces active volcanoes at the Earth's surface.</span>
The Mother Colony of the West Indies