Active volcanoes
Active volcanoes are those that have erupted in recent history and are likely to erupt again in the future. They are characterized by ongoing volcanic activity, such as the release of gases, formation of lava flows, and occasional explosive eruptions. One example of an active volcano is Mt. Etna.

Mt. Etna
- Mt. Etna is located on the east coast of Sicily, Italy. It is one of the most active volcanoes in the world and has been erupting for thousands of years.
- It is a stratovolcano, which means it is composed of layers of hardened lava, ash, and other volcanic materials.
- Mt. Etna is the tallest active volcano in Europe, standing at approximately 3,350 meters (10,990 feet) high.
- It has a long history of eruptions, with the most recent one occurring in February 2021. These eruptions are often characterized by lava flows, ash emissions, and occasional explosive activity.
- The volcano is closely monitored by scientists who use various instruments to measure volcanic activity, such as seismic activity, gas emissions, and ground deformation.
- Mt. Etna is a popular tourist attraction, and visitors can explore its volcanic landscape and even hike to the summit. However, safety precautions must be taken due to the unpredictable nature of volcanic activity.

Conclusion
In conclusion, Mt. Etna is an example of an active volcano. Its ongoing volcanic activity and frequent eruptions classify it as an active volcano rather than being dormant, extinct, or vulnerable. It serves as a reminder of the dynamic nature of our planet and the potential hazards associated with volcanic activity.