Ocean Acidity and Energy Efficiency

The video explores how oceans regulate Earth's temperature and the impact of climate change, including ocean acidification. Two experiments demonstrate heat absorption and acidification. The video concludes with practical steps to combat climate change and a preview of the next topic on microbiota.

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

• 80%

• 71%

• 60%

• 50%

In the heat absorption experiment, what does the water balloon represent?

• The atmosphere

• The oceans

• The land

• The sun

Why does the air-filled balloon burst when exposed to flame?

• The balloon is too small

• The air inside cannot absorb heat quickly

• The rubber is too thick

• The air inside absorbs heat quickly

What is the primary cause of ocean acidification?

• Increased oxygen levels

• Decreased salt levels

• Increased carbon dioxide absorption

• Decreased water temperature

What chemical is formed when carbon dioxide interacts with water?

• Sulfuric acid

• Nitric acid

• Carbonic acid

• Hydrochloric acid

Since the Industrial Revolution, by what percentage has ocean acidity increased?

• 40%

• 30%

• 20%

• 10%

What is a predicted consequence of continued carbon dioxide emissions on ocean acidity by 2100?

• Increase by 150%

• Remain the same

• Increase by 100%

• Decrease by 50%

Which of the following is a recommended action to reduce carbon emissions?

• Leave lights on when not in use

• Drive alone to work

• Invest in energy-efficient appliances

• Use more plastic bags

What is a benefit of using LED bulbs over conventional bulbs?

• They have a shorter lifespan

• They emit more heat

• They use up to 80% less energy

• They are more expensive in the long run

Which of the following is NOT a suggested way to reduce your carbon footprint?

• Recycling and reusing items

• Wasting food

• Using public transport

• Carpooling to work