Size Dozen

what are volcanoes? i need this for my project!?

i need to know for my project

What kind of volcanoes? There are several.
The textbook answer for volcanoes are openings in the earth's crust through which molten lava, ash, and gases are ejected.
This happens for two reasons: #1) Subduction, & #2) Hotspots.
Subduction zones are far more common than hotspots.
Subduction zones occur when one tectonic plate subducts under another. This can be between two oceanic plates, and one oceanic plate & one continental plate. Hotspots can occur anywhere, and are not restricted to certain areas on the earth. Here are some examples: Hawaii, a hotspot in the middle of an oceanic plate; Yellowstone, a hotspot in the middle of a continental plate; Iceland, a hotspot currently resting directly beneath a mid-oceanic ridge, or a dividing boundary between two tectonic plates.
That being said, there are different kinds of volcanoes that are categorized due to their size, composition, and the kind of eruptions that they produce.
I'll name some to give you an idea:

Shield volcanoes: they're labeled this because of their immense size (dozens to usually a hundred or so miles in diameter) and shaped like a warrior's shield. The eruptions are largely non-explosive, or rather, calm and fluid, usually moving slowly. They aren't a dangerous threat unless you stand and stare for longer than common sense dictates. Example: Hawaii in the Pacific Ocean.

Stratovolcanoes (aka Composite Volcanoes): these are immense in height rather than width. The composition is a mixture of effusive (non-volent) and explosive eruptions where first lava, then ash, then lava, and then ash again spews from the volcano. This creates a unique layering of lava and ash. These volcanoes are known for very, very dangerous eruptions. Examples: Mount Vesuvius & Stromboli in Italy.

Cinder Cones: these are very small in size, on the scale of maybe 300-400 meters in height. These are short-lived volcanoes, managing to only erupt a few times before going extinct. They can form on other volcanoes (Mount Mazama, Oregon, US of A) or by themselves.

Hope this helped!

Discover Size Dozen On eBay Below:

ANSELL 208 SIZE 9 FLOCKLINED RECESSED DIAMOND GRIP GLOVES NEW DOZEN PAIR
ANSELL 208 SIZE 9 FLOCKLINED RECESSED DIAMOND GRIP GLOVES NEW DOZEN PAIR
$24.00
EMBROIDERED SOMBRERO ADULT SIZE 1 DOZEN BULK
EMBROIDERED SOMBRERO ADULT SIZE 1 DOZEN BULK
$44.79
EMBROIDERED SOMBRERO ADULT SIZE 1 DOZEN BULK
EMBROIDERED SOMBRERO ADULT SIZE 1 DOZEN BULK
$46.10
Ball Regular Mouth Size Canning or Mason Jar Lids 8 dozen or 96 lids total
Ball Regular Mouth Size Canning or Mason Jar Lids 8 dozen or 96 lids total
$26.20
Ball Regular Mouth Size Canning or Mason Jar Lids 8 dozen or 96 lids total
Ball Regular Mouth Size Canning or Mason Jar Lids 8 dozen or 96 lids total
$26.20
Oneida T148STSF Europa Baguette S S US Size Teaspoon Dozen
Oneida T148STSF Europa Baguette S S US Size Teaspoon Dozen
$24.99

Just Purchased Size Dozen:


oneida t148stsf europa baguette ss us size teaspoon dozen, ball regular mouth size canning or mason jar lids 8 dozen or 96 lids total, embroidered sombrero adult size 1 dozen bulk, ansell 208 size 9 flocklined recessed diamond grip gloves new dozen pair

Comments are closed.