Marine Science Knowledge Assessment

The video explores the vastness and importance of the oceans, covering 70% of Earth and producing half of the planet's oxygen. It highlights the Census of Marine Life, a global effort to understand ocean biodiversity, revealing new species and the impact of human activity. Technological advances like remotely operated vehicles and genetic barcoding aid in exploration. Despite challenges like ocean acidification, the video emphasizes the need for conservation and global collaboration to protect oceanic ecosystems.

What percentage of the Earth's surface is covered by oceans?

• 80%

• 70%

• 60%

• 50%

What historical period marked the beginning of significant ocean exploitation?

• World War II

• Middle Ages

• Industrial Revolution

• Roman Era

What is the term used to describe the phenomenon where our perception of ocean productivity changes over time?

• Sea level rise

• Marine erosion

• Ocean drift

• Shifting baselines

Which technology allows scientists to explore the deep ocean remotely?

• Drones

• Remotely operated vehicles

• Sonar

• Satellite imaging

What is the purpose of genetic barcoding in marine research?

• To track fish migration

• To identify species accurately

• To measure ocean depth

• To monitor water temperature

Where are the most diverse oceanic species found according to the Census of Marine Life?

• At intermediate latitudes

• In the tropics

• Near the poles

• In coastal areas

What is the significance of the 'White Shark Cafe'?

• A marine research facility

• A mystery location where sharks gather

• A breeding ground for sharks

• A popular tourist spot

What percentage of marine species are estimated to still be undiscovered?

• 91%

• 50%

• 25%

• 9%

What environmental issue is a major concern for coral reefs?

• Oil spills

• Plastic pollution

• Ocean acidification

• Overfishing

Why is global collaboration important in marine science?

• Because marine organisms cross international boundaries

• To reduce costs

• To increase competition

• To share resources