Catastrophic Events

An extensive amount of snow over a short period is called a ...

• blizzard

• tsunami

• flood

• hurricane

Which catastrophic event would most likely result in trees being knocked over and the disappearance of most of the plants and animals along a narrow path in a forest ecosystem?

• tornado

• volcanic eruption

• flash flood

• earthquake

Tornadoes are catastrophic events that create change in ecosystems in which of the following ways?

• Heavy flooding increases areas where trees can grow.

• High winds damage areas of important plant life.

• Wildfires started by lightning reduce carbon dioxide.

• Saltwater kills many ground-dwelling animals.

A long period with no rain is called a _________.

• wildfire

• drought

• blizzard

• tornado

Where are hurricanes most likely to do the most damage?

• near the coast

• near a forest

• near a farm

• near the desert

Wildfires have both negative and positive effects on an ecosystem. Which is a negative effect of wildfire on an ecosystem?

• germination of tree seeds

• removal of thick underbrush

• reduced animal habitats

• increased plant diversity

Which of these is NOT an impact to the ecosystem after a hurricane?

• Fires throughout the area

• Poor water quality in the area

• Erosion of beaches

• Massive flooding

Which is the best synonym for catastrophic?

• Advantageous
• Successful
• Disaster
• Fortunate

What catastrophic event does this picture depict? 

• Tsunami
• Tornado
• Hurricane
• Earthquake

What catastrophic event does this picture depict? 

• Tsunami
• Tornado
• Hurricane
• Earthquake