Tsunami and Coastal Ecosystems Quiz

What natural disaster is the main focus of the video?

• Hurricane

• Earthquake

• Tsunami

• Volcanic eruption

In which year did the Boxing Day Tsunami occur?

• 2000

• 2002

• 2004

• 2006

How many countries were affected by the 2004 Boxing Day Tsunami?

• 7

• 10

• 14

• 20

What was the estimated death toll from the 2004 Boxing Day Tsunami?

• 50,000

• 100,000

• 150,000

• 226,000

In the town of Peraliya, how high was the tsunami wave?

• 5 meters

• 10 meters

• 15 meters

• 20 meters

How tall was the wave in Hikkaduwa compared to Peraliya?

• Half the height

• One-third the height

• One-quarter the height

• The same height

What factor did Dr. Fernando attribute to the difference in wave heights between nearby towns?

• Coastal elevation

• Coral mining

• Mangrove forests

• Ocean currents

According to the IPCC, what temperature increase could severely degrade virtually all tropical coral reefs within 30 years?

• 1°C

• 1.5°C

• 2°C

• 3°C

What percentage of the world's mangroves have been destroyed since 1980?

• 10%

• 15%

• 20%

• 25%

How much of the world's wetlands have been lost since 1970?

• One-fifth

• One-quarter

• One-third

• One-half