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…to collect there. *A band of volcanic rock (Whinsill) would help the foundations. *The large water catchment area. *Extensive local deposits of boulder clay, sand and gravel needed in the dam construction. *It is an area of heavy and reliable rainfall of 1,200…

…to grow. For example, volcanic glass has crystals that cannot be seen without special equipment. The crystals are too small, so we assume that rapid cooling took place along with the aid of water. When a molten mass of lava beneath the surface cools…

…domes of the Gulf region of the southern United States. There are also large volcanic deposits of sulfur in Sicily. Sulfur can be extracted commercially from pyrites. This is a mixture of several sulfur compounds, including the mineral pyrite, or iron sulfide…

…winds. Mercury's atmosphere is very thin and is composed of helium and sodium. The surface of Mercury has been shaped by three processes: impact cratering where large objects struck the surface resulting in crater formation, volcanism where lava flooded…

…DROUGHTS, FREQUENT EARTHQUAKES, FLASH FLOODS, LANDSLIDES, VOLCANIC ACTIVITY, BAD WINDSTORMS CALLED KHAMSIN THEY USUALLY OCCUR IN SPRING, DUST STORMS, SANDSTORMS. POPULATION: The population of Egypt is 66,050,004. The majority of Egyptians are eastern…

…, contributing to the active volcanoes across the earth. There has been evidence on Mars that there have been abundant volcanic activity in the past. Without tectonic plates, that has become a mystery. Two theories have been expressed to explain Mars’ geology. One…

…of water in it), hot water and dry volcanic rocks. We know that the temperature of the earth at depths of 25 to 50 km range from 200`C to 1000`C. There are areas of the earth where local concentrations of heat occur, just as mineral concentrations do. Most…

…. Volcanic activity blocked out the sun's rays, causing a massive ice age. At the end of the Permian period, massive lava flows released toxic gases into the ocean. This gas rose to the water's surface, killing 90-96% of all life on Earth. During the Triassic…

…full hour. The energy released during a flare is normally equivalent to 1027 ergs per second. Large flares can release up to 1023 ergs of energy, which is 10 million times greater than the energy released from a volcanic explosion. The amount of energy…

…sector and the pre-Alpine belt. Sedimentary rocks are also prevalent throughout the Apennines (limestones, dolomites, sandstones, clays, marls, etc.), including Sicily, and are found in Sardinia too, where crystalline and volcanic rocks predominate…