Volcanic activity ....................

many parts of the Hawaiian Islands.

Shield volcanoes grow as lava flows

........................ on the surface.

Intense ................. from Mauna Loa, the world's largest and heaviest volcano, has forced the ocean's crust below it into the mantle.

In Volcano National Park, visitors can walk across

....................... craters.

When a volcano

.........................

, it often produces loud noises.

There are four volcanoes on Earth that have been in a period of

......................... eruption for over 100 years.

In some types of volcanoes, the ........................

of the dome precedes the eruption.

In the ..................

country of Brazil, there is only one volcano.

During an eruption, gases often leak out of ..........................

or breaks in the ground.

Before a storm, the sky .............................. and the wind blows.

Tropical storms often ................... and don't become hurricanes.

The .....................from the lighthouse alerts ships of the hazardous coastlines.

The weather forecast of rain may ....................plans for the outdoor concert.

Firefighters estimated that the flames reached a ......................of four meters.