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Volcanoes

Содержание

1. Volcanoes
2. A volcano is an opening, or
3. On Earth, volcanoes are generally found where tectonic plates are diverging or converging.
4. There are three common
5. Erupting volcanoes can pose many hazards, not only in the immediate vicinity of the eruption.
6. Lava has a temperature
7. The largest volcano on Earth is Hawaii's
8. The most active volcano
9. Volcanic eruptions continue posing ever-greater threats to life and property.
10. South of
11. Another million people living
12. THE END
13. Скачать презентанцию

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

Слайды и текст этой презентации

Слайд 1Volcanoes

Volcanoes

Слайд 2 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 the surface.

A volcano is an opening, or rupture, in the surface or crust of the Earth or

Слайд 3 On Earth, volcanoes are generally found where tectonic plates are

diverging or converging.

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

Слайд 4 There are three common types of volcano:
composite

volcanoes, often the most deadly;
shield volcanoes, which are large but

generally less violent;
cinder cones.

There are three common types of volcano:composite volcanoes, often the most deadly; shield volcanoes, which

Слайд 5 Erupting volcanoes can pose many hazards, not only in the

immediate vicinity of the eruption.

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

Слайд 6 Lava has a temperature of more

than 1200 ° C, the rate of

2 to 40 kilometers

Lava has a temperature of more than 1200 ° C, the rate

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

about 10 km tall from the sea floor to

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

The largest volcano on Earth is Hawaii's Mauna Loa. It is about 10 km tall from

Слайд 8 The most active volcano in the continental

USA is Mt. St. Helens (located in western Washington state).

The most active volcano in the continental USA is Mt. St. Helens (located in

Слайд 9
Volcanic eruptions continue posing ever-greater threats to life and

property.

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

Слайд 10 South of Mexico City, Popocat

petl has begun to come to life again.

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

Слайд 11 Another million people living
in

the Naples area are threatened
by Mt. Vesuvius'

continued unrest.

Another million people living in the Naples area are threatened

Слайд 12THE END

THE END

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