Impact of Human Activities on Biodiversity

Why is biodiversity crucial for humans?

• It reduces the need for human intervention.

• It provides aesthetic value.

• It ensures the survival of key species.

• It increases the number of species on Earth.

What is a major consequence of habitat fragmentation?

• Increased species richness

• Populations adapting better to changes

• Populations splitting into smaller, vulnerable groups

• Improved agricultural productivity

What is the current estimated human population mentioned in the video?

• 1.5 billion

• 5 billion

• 7.5 billion

• 10 billion

How does overharvesting affect biodiversity?

• It causes a decrease in resource value.

• It improves the efficiency of resource extraction.

• It leads to an increase in species population.

• It results in the collapse of exploited species populations.

What is eutrophication and its impact on aquatic life?

• A method to clean polluted water

• A process that increases oxygen levels in water

• A natural process that enhances aquatic biodiversity

• A phenomenon that causes algae blooms, reducing oxygen and light for other species

What is a significant effect of acid rain on aquatic ecosystems?

• It enhances the growth of aquatic plants.

• It has no impact on aquatic ecosystems.

• It makes water bodies more acidic, harming aquatic life.

• It increases the pH level of water bodies.

How do alien species typically affect native ecosystems?

• They integrate seamlessly without any impact.

• They often outcompete native species, disrupting ecosystems.

• They improve biodiversity by adding new species.

• They have no significant impact on native species.

What is a predicted consequence of climate change on biodiversity?

• Stabilization of weather patterns

• Increased biodiversity due to warmer climates

• Significant impacts due to altered rainfall and drought patterns

• No change in biodiversity levels

What human activity is primarily responsible for speeding up global warming?

• Burning fossil fuels

• Recycling

• Using renewable energy

• Planting trees

What is the estimated number of species currently in transit on ocean vessels?

• 3,000

• 4,000

• 2,000

• 1,000