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Презентация на тему Volcanoes 

A volcano is an opening, or rupture, in the surface or crust of the Earth or a planetary mass object, which allows hot lava, volcanic ash and gases to escape from the magma chamber below
Volcanoes  A volcano is an opening, or rupture, in the surface or On Earth, volcanoes are generally found where tectonic plates are diverging or converging. There are three common types of volcano:composite volcanoes, often Erupting volcanoes can pose many hazards, not only in the immediate vicinity of the eruption. Lava has a temperature of more   than The largest volcano on Earth is Hawaii's    Mauna Loa. It is about The most active volcano in the continental USA is Volcanic eruptions continue posing ever-greater threats to life and property. South of Mexico City, Popocat petl has Another million people living   in the Naples THE END
Слайды презентации

Слайд 2 A volcano is an opening, or rupture, in

A volcano is an opening, or rupture, in the surface

the surface or crust of the Earth or a

planetary mass object, which allows hot lava, volcanic ash and gases to escape from the magma chamber below the surface.

Слайд 3 On Earth, volcanoes are generally found where tectonic

On Earth, volcanoes are generally found where tectonic plates are diverging or converging.

plates are diverging or converging.


Слайд 4 There are three common types

There are three common types of volcano:composite volcanoes, often

of volcano:
composite volcanoes, often the most deadly; 
shield volcanoes, which

are large but generally less violent;
cinder cones.

Слайд 5 Erupting volcanoes can pose many hazards, not only

Erupting volcanoes can pose many hazards, not only in the immediate vicinity of the eruption.

in the immediate vicinity of the eruption.


Слайд 6 Lava has a temperature of

Lava has a temperature of more  than 1200

more
than 1200 ° C, the

rate of
2 to 40 kilometers

Слайд 7 The largest volcano on Earth is Hawaii's 
Mauna Loa.

The largest volcano on Earth is Hawaii's   Mauna Loa. It is about

It is about 10 km tall from the

sea floor to its summit (it rises about 4 km above sea level).

Слайд 8 The most active volcano in

The most active volcano in the continental USA is

the continental USA is Mt. St. Helens (located in

western Washington state).

Слайд 9
Volcanic eruptions continue posing ever-greater threats to

Volcanic eruptions continue posing ever-greater threats to life and property.

life and property.


Слайд 10 South of Mexico

South of Mexico City, Popocat petl has begun to come to life again.

City, Popocat petl has begun to come to life

again.

Слайд 11 Another million people living

Another million people living  in the Naples area

in the Naples area are threatened

by Mt. Vesuvius' continued unrest.

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