Volcanoes are often considered a destructive force. When a volcano (1) __________
, it destroys both the land and people surrounding (2) __________
. Steam and ashes are forced through the (3) __________
Of the volcano, spraying the surrounding area (4) _________
fiery debris and
boiling molten rock called lava.
Volcanoes can also be considered helpful. Many beautiful islands in the Pacific Ocean, (5) _________
as Hawaii, were completely formed by volcanic eruptions. These islands (6) __________
excellent soil and drinking water because the land is made of (7) __________
that has cooled and broken down to (8) __________
soil. When lava cools, it becomes porous, making pools where fresh water can pollect. As lava breaks down into soil, its minerals make the soil rich (9) __________ f
ertile. Cooled lava is also a good road-building material. In Iceland, the steam (10) __________
active volcanoes is used to supply heat and power (11) __________
factories and homes.
Many volcanoes have become tourist (12) __________
because they are so powerful and beautiful. People enjoy climbing (13) __________
to the top of these volcanoes to get a bird's eye (14) __________
of the countryside. Some like to stand at the crater's edge to (15) __________
at the bubbling lava and hot steam inside. At night, the hissing steam and glowing flames are a dramatic sight.
Adapted from INSIGHTS: Reading as Thinking