It is composed of layers of ash and cinders alternating with lava. lt has a broad base and steep convex slopes. The above features are associated with a

The features described, including layers of ash and cinders alternating with lava, a broad base, and steep convex slopes, are associated with a composite cone. A composite cone, also known as a stratovolcano, is a type of volcano that is built through a combination of explosive eruptions and lava flows. It is composed of alternating layers of volcanic ash, cinders, and solidified lava. These layers are formed as a result of the volcano's eruptions, which can be explosive and produce ash, cinders, and pyroclastic materials, as well as effusive eruptions that release lava flows. The broad base of a composite cone refers to its wide footprint or footprint-like shape at the bottom. The steep convex slopes indicate that the sides of the volcano are steep and curve outward, creating a convex shape. This steepness is a result of the alternating layers of ash, cinders, and lava accumulating over time. Composite cones are often found in subduction zone environments where tectonic plates collide, and one plate is forced beneath the other, creating intense volcanic activity. They are typically tall and cone-shaped, such as the famous Mount Fuji in Japan or Mount St. Helens in the United States. In summary, the described features - layers of ash and cinders alternating with lava, a broad base, and steep convex slopes - are characteristic of a composite cone or stratovolcano.