Question

1. Answer the following questions briefly:
1. What are volcanoes? What are the different types of volcanic eruptions?
2. Name two different types of volcanic eruptions.
3. What are composite cones?
4. How is a crater formed?
5. How are lava plateaus formed? Give an example.
6. Name three intrusive landforms in a volcanic region.
7. Enlist some of the destructive effects of volcanoes.
8. Indicate the world distribution of active volcanoes.
9. Why is the Circum-Pacific Belt known as the Pacific Ring of Fire?​

Answer 1

1. A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.A volcano is a rupture in the crust of a planetary- mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. ...  Volcanoes form when magma reaches the Earth's surface, causing eruptions of lava and ash 2There are two types of eruptions in terms of activity, explosive eruptions and effusive eruptions. Explosive eruptions are characterized by gas-driven explosions that propels magma and tephra. Effusive eruptions, meanwhile, are characterized by the outpouring of lava without significant explosive eruption. 3.Also known as stratocones, composite cones are made up of layers of lava, volcanic ash, and fragmented rocks. These layers are built up over time as the volcano erupts through a vent or group of vents at the summit's crater. 4Craters are formed by the outward explosion of rocks and other materials from a volcano. 5A lava plateau is a wide, flat surface formed when a large amount of highly fluid lava flows over an area. This thin and runny lava can disperse over large areas, and as the lava cools and solidifies, it forms the large, flat plateaus of rock. 6.Volcanic landforms are divided into extrusive and intrusive landforms based on weather magma cools within the crust or above the crust. Intrusive landforms are formed when magma cools within the crust and the rocks are known as Plutonic rocks or intrusive igneous rocks 7.Volcanic eruptions can cause earthquakes, fast floods, mud slides, and rock falls. Lava can travel very far and burn, bury, or damage anything in its path, including people, houses, and trees. The large amount of dust and ash can cause roofs to fall, makes it hard to breathe, and is normally very smelly.Answer: Volcanoes are distributed all around the world, mostly along the edges of tectonic Plates, although there are intra-plate volcanoes that form from mantle Hotspots (eg, Hawaii). Some volcanic regions, such as Iceland, happen to occur where there is both a hotspot and a plate boundary.9. The Ring of Fire, also referred to as the Circum-Pacific Belt, is a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes. ... The abundance of volcanoes and earthquakes along the Ring of Fire is caused by the amount of movement of tectonic plates in the area.