Answer:

The relevance of a volcanic eruption in the development of a certain industry in a particular nation depends on the location and magnitude of the eruption, as well as the type of industry in question.

In some cases, a volcanic eruption can have a negative impact on industries, particularly those related to agriculture, tourism, and transportation. For example, an eruption can release ash, gases, and other harmful substances into the air, making it difficult for planes to fly and causing respiratory problems for humans and animals. Additionally, lava flows and pyroclastic flows can destroy crops, buildings, and infrastructure, disrupting the local economy and tourism industry.

However, in some cases, a volcanic eruption can also have positive impacts on industries. For example, the volcanic ash and rock that is ejected during an eruption can create fertile soil that is ideal for agriculture. In some areas, volcanic rocks can also be used for construction, such as building walls and roads. Furthermore, hot springs and geothermal energy from volcanic activity can be used for energy production, providing a sustainable source of power for certain industries.

One example of a nation that has developed an industry based on volcanic activity is Iceland. The country is situated on a mid-Atlantic ridge and has numerous active volcanoes, which has led to the development of a geothermal energy industry. Iceland's geothermal energy industry provides a significant portion of the country's energy needs, and the country has become a world leader in geothermal energy research and development.