assignment 1. Three types of volcanoes are the shield volcano‚ Strato Volcano’s and cinder cones .The Shield volcanos are usually built entirely from lava flow they are name for their large size and low profile. The Starto’s volcano’s have steep sides with cones that stick out like huge bumps. They are built up when eruptions of viscous lava‚ tephra‚ and pyroclastic flows happen. The Cinder cones is a steep conical hill of tephra that accumulate around and downwind from a volcanic vent.[1] The
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To what extent can preparedness and planning mitigate the effects of volcanic hazards? (40 marks) A volcanic hazard is a situation that poses a threat to life‚ the environment‚ and infrastructure after a volcanic eruption. Volcanoes are formed at various plate boundaries‚ such as at mid oceanic ridges where plates are moving apart‚ for example at the Mid Atlantic ridge. They also occur on or near subduction zones. The ‘ring of fire’ tends to be where the most violent volcanic activity occurs.
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called a snow slide or snow slip is a rapid flow of snow down a slope. Volcanic eruptions The volcanic eruption itself that may cause harm following the explosion of the volcano or the fall of rock. Second‚ lava may be produced during the eruption of a volcano. As it leaves the volcano‚ the lava destroys many buildings and plants it encounters. Hailstorms Hailstorms are falls of rain drops that arrive as ice‚ rather than melting before they hit the ground. Tornado Tornado is a violent‚ dangerous
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example of an intrusive igneous rock would be granite. Extrusive‚ or volcanic‚ igneous rocks are formed when magma exits and cools outside of the Earth’s surface. These types of rocks are formed when lava flows from volcanoes. They solidify above the surface and have much shorter cooling times. Because lava cools and crystallizes quickly‚ it is a fine grain. The grains in extrusive rocks are quite small‚ so to classify them they have to be placed under a microscope to examine the thin sections to determine
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Chances Peak had woken up it then remained active for five years. In 1996‚ the lava dome grew 3x faster than before‚ causing pyroclastic flows from the large collapses flew into Plymouth on the 3rd August destroying the central parts of the town. The most intense eruptions occurred in 1997. Although in 1996 on the 17th September‚ many houses were destroyed and many caught on fire‚ and most importantly a major part of the lava dome collapsed. And on the 25th June 1997‚ 19 people lost their lives‚ despite
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guilty. He had been arrested on May 14‚ 2012‚ but new evidence had finally found him in prison. The woman‚ Yu‚ had been found on a lava embankment; Dan had reported that he found her there‚ presumably after hanging laundry. She had many injuries; a later autopsy determined she died of two massive wounds caused by a tire iron. She also had scrapes from the lava rocks. In 2012‚ a new case prosecutor reviewed the case-there was additional blood evidence found‚ evidently linking DeJarnette to his
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he consequences of natural selection for all the species that do not vary and that are genetically identical is that the environment around them may cause them to go extinct. The environment has many powerful factors that play a role in natural selection. 2. Thomas Robert inspired Darwin and Wallace to write the theory for natural selection. He was an English clergyman and economist. The essay was about the increase and decrease of resources and population. It said the while the mankind population
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1) Natural VS Logging areas The results of the diversity index analysis show that the NF area is the highest (H’ = 1.57). The minor is the MD area (H’ = 1.55) and the HD area (H’ = 1.37)‚ respectively. The LD area is the lowest (H’ = 1.35). This is consistent with Edward et al.’s report (2011) who studied about degraded lands that are worth protecting: the biological importance of Southeast Asia’s repeatedly logged forests found logging had little effect on the overall richness of birds in the once-logging
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between December 2010 and October 2012. Arenal in November 2006→ On Monday‚ July 29‚ 1968 at 7:30 AM‚ the Arenal Volcano suddenly and violently erupted. The eruptions continued unabated for several days‚ burying over 15 square kilometers with rocks‚ lava and ash. When it was finally over‚ the eruptions had killed 87 people and buried 3 small villages – Tabacón‚ Pueblo Nuevo and San Luís – and affected more than 232 square kilometers of land. At the height of its ferocious activity‚ the volcano
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changes led to the formation of our world and‚ eventually‚ the creation of life. As stated in the movie 4500 million years ago the earth looks like hell than home. Also‚ we can definitely see it as a “boiling ball of liquid rock or an endless ocean of lava” because the sun was only 22‚000 kilometers away from our planet. As time goes by‚ Meteorite starts showering the planet and brings water 3‚ 900 million years ago. Then‚ 3‚800 million years ago the molten rocks burst in the earth’s crust and rises
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