Ecosystem Impact and Conservation Strategies

The video discusses the human impact on the environment, leading to a potential sixth mass extinction. It covers overexploitation of resources, habitat destruction, pollution, acid precipitation, eutrophication, and the introduction of non-native species. These actions result in rapid environmental changes, making it difficult for organisms to adapt and survive. The video emphasizes the importance of understanding these impacts to mitigate further damage.

What is a major cause of the potential sixth mass extinction discussed in the video?

• Overexploitation by humans

• Solar flares

• Natural disasters

• Alien invasion

What is a consequence of overexploitation?

• Stabilized ecosystems

• Extinction of species

• Improved air quality

• Increased biodiversity

How does habitat fragmentation affect large organisms?

• It has no effect on them

• It reduces their habitat size, making survival difficult

• It increases their genetic diversity

• It provides more space for them to roam

What is one way to mitigate habitat fragmentation?

• Building more roads

• Creating corridors for wildlife

• Increasing urban development

• Introducing more species

What is biological magnification?

• The natural purification of water bodies

• The spread of diseases among animals

• The increase of pollutant concentration in organisms higher up the food chain

• The process of organisms growing larger

Why should pregnant women be cautious about eating certain fish?

• Fish are high in calories

• Fish contain high levels of mercury due to pollution

• Fish are expensive

• Fish are difficult to digest

Why is acid precipitation harmful to fish?

• It raises the water temperature

• It changes the pH of the water, affecting their survival

• It increases the oxygen levels in water

• It provides more nutrients for them

What is a common misconception about acid precipitation?

• It is a natural phenomenon

• It is beneficial for plants

• It can melt human skin

• It is more acidic than soda

What causes eutrophication in water bodies?

• Introduction of non-native species

• Increased water temperature

• Excess nutrients like nitrogen and phosphates

• Excessive fishing

How do introduced species affect native ecosystems?

• They often outcompete native species, leading to extinction

• They help native species thrive

• They always improve biodiversity

• They have no impact