The Impact of Human Activities on Biodiversity and Ways to Preserve It

The video discusses biodiversity, highlighting human impacts such as overfishing, fish farming, and the introduction of new species. It explains eutrophication and its effects on aquatic ecosystems. Conservation efforts, including laws and programs to maintain biodiversity, are covered. The video concludes with pollution reduction and recycling initiatives.

What was the primary measure that helped Atlantic cod populations begin to recover?

• Introduction of new fish species

• Implementation of fishing quotas

• Expansion of fish farming

• Reduction in fish consumption

How can fish farming negatively impact biodiversity?

• By increasing the number of wild fish

• By spreading diseases to wild populations

• By reducing the need for fishing quotas

• By improving water quality in lagoons

What unintended consequence did the introduction of cane toads in Australia have?

• They helped native species thrive

• They became a greater threat than the rats

• They improved the biodiversity of the area

• They controlled the rat population effectively

What is eutrophication and how does it affect aquatic ecosystems?

• It is the introduction of new species, enhancing aquatic life

• It is the reduction of algae, improving water quality

• It is the addition of nutrients, causing algae overgrowth and reduced biodiversity

• It is the removal of nutrients, leading to increased biodiversity

Which of the following is a method used to restore endangered species?

• Increased hunting

• Introduction of invasive species

• Captive breeding programs

• Deforestation