Answer:
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Explanation:
• Iceland is probably the only place in the world where the effects of two major tectonic plates drifting apart can easily be observed above sea level.
Tectonic plates in Iceland
The tectonic plates whose formed Iceland, are the Eurasian tectonic plate and the North American tectonic plate.
As the plates moved apart, excessive eruptions of lava constructed volcanoes and filled rift valleys.
• On February 20, 1943, Dionisio Pulido was working in his cornfield just outside the Tarascan Indian village of Paricutin, Mexico. He and his family had spent the day getting ready for the spring sowing by clearing the field of shrubbery, putting it in piles and burning it.
Pulido turned to look back towards the crack and saw that the ground there had swelled up over six feet in height and fine gray ashes were pouring out of the hole. "Immediately more smoke began to rise with a hiss or whistle, loud and continuous; and there was a smell of sulfur," Pulido later told witnesses.
• A green roof, also called an eco-roof or garden roof, is a roofing system that grows plant life on a flat or slightly sloped, waterproof and layered substructure.
• Polar wander paths provided the first clear geophysical evidence for continental drift, while marine magnetic anomalies did the same for seafloor spreading.
Paleomagnetism continues to extend the history of plate tectonics back in time and are applied to the movement of continental fragments, or terranes.
Paleomagnetic studies, which examine the Earth's past magnetic field, showed that the magnetic north pole seemingly wandered all over the globe. This meant that either the plates were moving, or else the north pole was.
