Natural Disasters

A _____________ is a natural event that causes great destruction to animal, human beings and the environment.

• natural disaster

• environment

• earth

• cyclone

The spot on the surface of Earth directly

above the focus is called the _________.

The magnitude of an earthquake is

measured using the ___________.

• Seismograph

• Richter scale

• measuring tape

• all of the above

A ___________ is an instrument used for

recording the intensity and duration of an

earthquake.

In _________ an earthquake under the Indian Ocean

generated a massive tsunami.

• 2013

• 2005

• 2004

• 2001

A __________ is an opening or crack in Earth's

crust, which allows hot magma, ash, and gases

to escape from below the surface.

• volcano

• earthquake

• cyclone

_______ is a molten rock within Earth's crust.

• Tsunami

• Magma

• Lava

A _________ is a large, rotating tropical storm caused by

winds blowing in a circle around an area of low air

pressure.

• Tsunami

• cyclone

• pressure

Floods do not erode the soil.

• true

• false

Droughts occur in semi-arid and arid

areas

• true

• false