Asteroids also called the inner solar system are minor planets which are neither categorised as a planet or a comet. They are in direct orbit around the Sun. They primarily remain on the circumstellar disk of gas around new stars and also the debris of the disk together. They are also known as planetoids and range in size from hundreds of miles to few feet. Most of them are irregular in shape. They are majorly present in the asteroid belt between Mars and Jupiter.
Mount St. Helens is an active strato-volcano in Skamania County, Washington, in the Pacific Northwest region of the United States. It is well known for its ash explosions and pyroclastic flows.Mt. Vesuvius is a somma-stratovolcano located in Naples, Italy. It is universally acknowledged to be an extremely dangerous volcano.Mount Krakatoa is a Caldera in the Sunda Strait between the islands of Java and Sumatra in the Indonesian province of Lampung.
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