The British Parliament passed a law granting independence in July 1947. The law gave people only one month to decide which country they wanted to live in and to move there. As millions of people began to move, more violence broke out.
Calderas form when an enormous magma chamber under, what was probably a pretty ginormous volcano, empties and collapses, causing the land above it to collapse as well. An explosive caldera-forming eruption has never been witnessed first hand, but we know that they should pretty fearsome spectacles. Much smaller calderas atop effusive volcanoes (hawaiian style) have been observed. So, formation: maars form when a vent intersects groundwater and blasts out the overlying material.
No. A stratovolcano is a volcano with steep slopes consiting of layers of lava flows, ash, and pumice and is prone to explosive eruptions. A shield volcano is a volcano with b â¦ road slopes composed of layers of low viscosity lava flows and is generally not prone to explosive eruptions.t is believed that 2.1 million years ago, Yellowstone 'Supervolcano' did erupt, it then erupted a second time and the last time it erupted was 640,000 years ago. In 2008, sc â¦ ientists measured high seismic activity showing that Yellowstone could potentially erupt again but hopefully not any time soon.