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- September 17, 2021
- STEM Frenzy Articles
Land and its ownership have been a driving force of wars between people, nations. Ownership of land is a driving force of competition between animals too.
The land is formed by geological processes that last millions of years. Land originates from the depths of the oceans, and it is the result of the clash of the tectonic plates. Tectonic plates are floating on top of the magma that makes up the inside of our planet. When 2 tectonic plates push against each other, they lift, thus creating more land. This same process also is the origin of tsunamis, as we mentioned above. The process of tectonic plates pushing against each other creates continents and mountains. This is the reason why mount Everest is increasing its height year after year, as the tectonic plates beneath are pushing the mountain higher and higher.
Land can be created also from volcanoes. When lava disrupts from the top of a mountain, it then freezes and creates new land. Such a process happens also when tectonic plates push away from each other. In this case, they get away, exposing the lava that is underneath. When this happens, that lava freezes as soon as it touches water. We are talking about water as these tectonic plates are situated deep below the Earth’s crust and these activities happen deep below at the ocean bottom.
These tectonic plates move because they are floating on top of the magma. Well, magma is hot and deep below the earth, there are plenty of minerals and metals. The high temperature, flowing from the inside of the planet to the surface in conjunction with the various properties of the metals that are found on the core, make the Earth get magnetic properties. Even though Earth is a weak magnet, it is still a magnet. Every magnet has poles, a south pole, and a north pole. This is the reason why we have a north pole and a south pole on earth. It is important to note that we have a magnetic north pole and a geographic north pole. The geographic north pole is measured by taking the upper point of the imaginary axis that the earth spins around itself. Although both north poles are close to each other. To orient ourselves we use the magnetic north pole, which is where a compass will direct us.
Nations and countries are created on 2 main basic ideas, cultural composition of people and territorial distribution. When a nation has been defined, then it is further divided into small units based on the topography of the land and the economic activity of each part of the country. This is how we have cities, counties, towns, and states.
In these towns or counties, there are areas of high interest which are called national parks. These are special areas that have great natural biodiversity in comparison to other areas of the country. These areas are of high importance and are [protected to preserve the ecosystem.
- STEM Frenzy Articles (12)
Understanding the History of Artistic Expression
Sep 17, 2021