Читать книгу National Geographic Kids Readers: Erupt! - Joan Galat Marie - Страница 6

Heavy ashfall can

make it impossible

to breathe.

The powdery ash that

volcanoes eject can float

around the world.

Mount St. Helens, in Washington State,

U.S.A., caused the largest landslide

known on Earth when it erupted.

Magma flows to Earth’s

surface because it is lighter

than the solid rock around it.

Lava can reach 2,000 degrees

Fahrenheit—four times hotter

than your kitchen oven!

An umbrella won’t help! Lava blown

from a volcano hardens into solid rock

in the air, and the pieces fall like rain.

In the United States alone, 80 volcanoes have

erupted once or more in the past 500 years.

The heat from lava causes the

plants it buries to release

gases and explode.

Volcanoes can change the weather.