15. Volcanoes: Shield or Composite?

6 errors: 2 content; 2 grammar; 1 punctuation; 1 spelling

Volcanoes: Shield or Composite? Errors

There is more than one type of volcano. Volcanoes are identified by their shapes and the materials from which they are made. Mount St1 Helens is a shield2 volcano. A volcano of these3 type is made from the lava and debris of repeated eruptions. Alternating layers of lava and ash build up to form the classic volcano shaped like a cone. Mauna Loa is an4 shield volcano. Lava flows from one vent5 to form a low mountain. Most shield volcanos6 have many craters on their summits.

St. Helens--Punctuation: period in abbreviation

composite--Content: see upper half of illustration

this type--Grammar: agreement of adjective with noun in number

a shield--Grammar: a before consonant sound (article)

from several vents--Content: see lower half of illustration

volcanoes--Spelling

Volcanoes: Shield or Composite? Corrected

There is more than one type of volcano. Volcanoes are identified by their shapes and the materials from which they are made. Mount St. Helens is a composite volcano. A volcano of this type is made from the lava and debris of repeated eruptions. Alternating layers of lava and ash build up to form the classic volcano shaped like a cone. Mauna Loa is a shield volcano. Lava flows from several vents to form a low mountain. Most shield volcanoes have many craters on their summits.