Grade 9 Review/Performance task Quarter 3

Type of eruption is characterized by tall eruption columns that reach up to 20 km high with pyroclastic flow

Answer explanation

Vulcanian is a type of eruption is characterized by tall eruption columns that reach up to 20 km high with pyroclastic flow

What type of volcano has a record of eruption within the last 600 years and erupted based on analysis of their materials 10,000 years ago?

Answer explanation

1.    Active is a type of volcano has a record of eruption within the last 600 years and erupted based on analysis of their materials 10,000 years ago? type of volcano has a record of eruption within the last 600 years and erupted based on analysis of their materials 10,000 years ago?

In the Philippines, Mt. Mayon is considered as a/an_________ volcano?

• Active

• Dormant

• Extinct

• Inactive

​_______ are most volcanoes found

What characteristic of magma determines its explosiveness?

• amount

• color

• silica content

• temperature

Which of the following is negative effect of volcanic eruption?

• Provides resources for energy extraction.

• Has produced very rich soil for farming.

• Can cause loss of lives and properties

•    Creation of spectacular scenery

A lava that is very runny probably

• Is relatively cooler

• Has lower silica content

• Comes from explosive volcanoes

• HAs been cooled before the surface

Which of the following classifications of a volcano is based on its shape?

• active and inactive

• shield,

  cinder,

  composite

• explosive, quiet

• stromboilian,

  plinian

  vulcanian

  Which of the following characteristics of a volcano depends on its magma emission?

• age

• location

• size

• shape

A type of volcano that has a large base, gentle slope, and is made from lava rock layers.

• cinder

• composite

• shield

• expinct