pisa type questions in volcano

1. PISA
Volcanic Eruption

3. Gianne loves hiking and enjoys visiting
volcanic sites to learn more about Earth’s
natural formations. On one of her trips, she
notices that volcanoes come in different
shapes and sizes, prompting her to research
their classifications. She discovers that
volcanoes are generally categorized into
three main types: shield, cinder cone, and
composite (or stratovolcano). Shield
volcanoes, like those in Hawaii, are broad
and have gentle slopes formed by flowing
lava that spreads widely.

4. Cinder cone volcanoes, on the other
hand, are smaller and have steep sides made
of ash, cinders, and other volcanic debris.
Composite volcanoes are tall and cone-shaped,
built from layers of lava flows and pyroclastic
materials, often producing the most explosive
eruptions. Each type of volcano forms
differently based on the kind of eruption and
the materials involved. Gianne finds this
fascinating and wonders how the structure and
materials of a volcano determine its
classification.

5. Which type of volcano is characterized by gentle
slopes and is primarily formed by flowing lava that
spreads over a wide area?
A) Cinder cone, because it is made from volcanic
debris that creates steep sides.
B) Composite, because it forms tall cones through
alternating layers of lava and ash.
C) Shield, because it is formed by lava flows that
spread widely and create gentle slopes.
D) Composite, because it produces the most
explosive eruptions and builds up tall structures.

6. END