This question may not be so easy to answer considering that as we all know living near a volcano poses a great danger when it erupts. Perhaps if the prize can be converted to cash, many people will prefer it. But what if it is not allowed, will you just make it as your rest house and say, “leave it to nature?” Let’s take a look at volcanoes so we can resolve this issue.
Eruptions of volcanoes are among the most feared disasters on earth. History accounts that a Roman City had been buried with lava during a violent eruption of a volcano in Rome thousands of years ago. Similarly, a great number of houses, edifices and churches were buried in various parts of the world with volcanic ashes.
What causes volcanoes to erupt?
The earth’s depth is too hot causing big rocks to melt slowly becoming a thick, sticky and hot flowing magma. Since it is less dense than the solid rock formation surrounding it, the tendency is to rise up and gather in volcano chambers. They become so powerful that they can push anything hard to pave their way out of the chambers.
Thus, the next phase is volcanic eruption. When the volcano erupts, this magma that has erupted is called lava. Volcano eruption depends on how sticky the magma is. Some volcanoes cause violent explosions while others are not.
If the magma is made up of thin layers and flows easily, gases can easily escape from it as it flows. When this thin layered magma erupts, you can see a river of lava flowing out of the volcano. On the other hand, if the magma is too thick and sticky, gases would remain but they create heavy pressure to escape and when they do, a violent explosion occurs.
This kind of eruption makes a big blast on the air and breaks into tiny particles known as tephra. This tephra can be the size of tiny particles to big boulders. Volcanic explosions are deadly and violent. They can destroy the clouds above them to form into heavy rains that convert the lava into mud which can cause a great toll on people, animals, plants and properties along the way.
Why are there volcanoes then?
Volcanoes exist because the crust of the earth is broken into plates that float on the earth’s layer. As these plates move around, they either push or pull each other forming craters on their sides called volcanoes.
Do Volcanoes grow?
Volcanoes grow from frequent eruptions. The eruptions of lava and tephra are piled up in layers to form symmetry of cones with sharp sides.
Do volcanoes give any benefit to humans?
The first oceans and atmosphere on the earth came from the gases emitted by the volcanoes. Many of the earth’s landscapes such as mountains and islands were formed by volcanic eruptions. After the eruption of volcanoes, the lava that they produce becomes ashes that mix with the soil. As years pass by, this soil mixed with lava becomes fertile again ready for planting.