Learn about volcano
What is a volcano?
A volcano is an opening, in the planet’s surface which allows hot, molten rock, ash and gases to escape from below the surface.
The name, “volcano” originates from the name Vulcan, a god of fire in Roman mythology. Volcanoes are like giant safety valves that release the pressure that builds up inside the Earth. The Hawaii islands were formed by 5 volcanoes.
Classified by the extent of their activity volcanoes are of four types. An ‘active’ volcano is one that erupts regularly. There are about 500 known active volcanoes on Earth, not counting those that lie beneath the sea. A ‘dormant’ volcano is one that has not erupted for many years, although there is still some activity deep inside it. An ‘extinct’ volcano is one which has ceased to be active. A volcanic eruption occurs when hot rocks and lava burst from a volcano; and geysers and springs are actually just volcanoes that throw boiling water high in the air. They are caused by volcanic heat warming trapped ground water.The liquid rocks inside a volcano are called magma and when it flows out it is called as lava. Fresh lava has temperatures from 700 degrees C to 1200’C and glows red-hot to white hot as it flows. The most dangerous volcanic eruption recorded is the eruption of Mount St. Helens in Washington.
Volcanoes are generally concentrated on the edge of continents, along the island chain, or beneath the sea forming long mountain ranges. A major part of the world’s active volcanoes above sea level encircle the Pacific Ocean forming the “Ring of Fire.” Volcanoes can have serious affects on the lands and people around them when they erupt. The destruction they leave in their wake accounts for the total annihilation of the surrounding landscape. Around 2, 00,000 people have lost their lives to volcanic eruptions in the past five hundred years.Buildings are destroyed, people are rendered homeless, people are killed, plant and animal life are both destroyed and the poisonous gases that emanate from the volcanoes can cause death and diseases like pneumonia in the people who survive it. However not everything associated with the volcanoes is negative. The crust of the earth exists due to the large volumes of magma that did not erupt but instead cooled below the surface. It results in rich soil which is good for cultivation.The volcanic ash that blows out of the volcano increases soil fertility by adding nutrients to the soil. Groundwater heated by magma can be tapped for geothermal energy. Most of the metallic minerals like copper, gold, silver, lead and zinc are mined from the magmas found deep within the roots of extinct volcanoes.
Data triangulation validates your data and research by cross verifying the same information. This triangulation of data strengthens your research paper because your data has increased credibility and validity.
The triangulation of data occurs when multiple theories, materials or methods are used. The following are a few of the most common approaches:
Data source triangulation—Using evidence from different types of data sources, such as primary and secondary research or interviews, documents, public records, photographs and observations
Methodology triangulation—Combining multiple methods to gather data, such as documents, interviews, observations, questionnaires or surveys, when conducting primary research, at different times and in different places
Theory triangulation—Using more than one theoretical approach (theory) to interpret and support data
As data source triangulation i have gathered several websites supporting my theory. I have three websites supporting for each statement. As what is a volcano? I have add three websites including newspaper articles and much more. Why is this reliable? Because i have one source supporting my theory and if that makes you think that it isn't i would pull out of my sleeve several different sources to make my theory true enough. The triangulation of data strengthens your research and allows you to write a better research paper because of the following benefits.
- Additional sources of information often give more insight into a topic
- Inadequacies found in one-source data is minimized when multiple sources confirm the same data
- Multiple sources provide verification and validity while complementing similar data
- More comprehensive data is obtained
- Data and information is supported in multiple places/types of research, which makes it easier to analyze data to draw conclusions and outcomes
- Inconsistencies in data sets are more easily recognized
Understanding how the triangulation of data works is important to using this method to strengthen your research. Below each of the types of triangulation identified above with examples of how you could combine data. If you were utilizing information and data obtained through secondary research, finding data sets that complement one another is accomplished by using multiple types of sources. Increasing the credibility of your research is done, for example, by complementing something in a written document with relevant statistics from public records or visual confirmation with a historical photograph. If you were conducting primary research and wanted to use data triangulation, you might combine two different types of interviews: conversational interviewing and structured-question interviewing. By using two different methods, or approaches, to collect your data, you obtain different information that (hopefully) provides data sets that complement one another. When two competing theories can both support data, the information is appropriate to include in your paper; when they do not, the information is better left out of your paper. While sometimes competing theories might support the findings under each other, this does not normally occur with this type of data triangulation.