newton

Which of the following BEST describes a volcano?

• It is a long tube in the ground that connects the magma chamber to Earth’s surface.

• It is a place within the mantle where rocks melt to generate magma.

• It is an opening on the surface of the Earth that allows material warmer than its surroundings to escape from its interior.

• It is an opening in the Earth's mantle through which lava, volcanic ash, and gases escape.

Which of the following statements about volcanoes is TRUE?

• Volcanoes cannot be found in bodies of water.

• Volcanic eruptions are always violent.

• Volcanic eruptions can be predicted.

• Volcanoes give us information about inner Earth

Which part represents the magma chamber?

• 1

• 2

• 3

• 7

What part of the volcano is represented by Part 1?

• crater

• magma

• magma chamber

• main vent

Which of the following statements correctly describes Part 8 in Figure 1?

• It is a silicate rock that is hot enough to be in liquid form, expelled from a volcano and reached the Earth’s surface during an eruption.

• It is a basin, circular in form, which can be large in radius and sometimes great in depth.

• It is a fast-moving current of hot gas and rock that is moving away from a volcano.

• It is cloud of ash formed by volcanic explosion

What type of volcanoes are formed from wide thin layers of lava?

• composite volcanoes

• cinder cones

• shield volcanoes

• lava domes

What type of volcano is Mayon Volcano which is formed from alternating layers of lava flow, undissolved stone and ash?

• composite volcanoes

• shield volcanoes

• cinder cones

• lava domes

Which of the following CORRECTLY describes the composition and formation of composite volcanoes?

• It has a highly viscous or thick, slow moving lava.

• It has a loose and fluid lava that flows over each other.

• It is composed of boulders and formed by the collision of oceanic plates.

• It is composed of loose fragments from basaltic lava and considered as the simplest type of volcano.

What is the term used to represent the opening of the volcano where magma comes out?

• vent

• summit

• crater

• chamber

Which type of volcanoes have broad bases and steep slopes and are formed by alternating layers of lava flows, volcanic ash, cinders, blocks, and pyroclastic materials?

• shield volcanoes

• lava domes

• composite volcanoes

• cinder cones