Human impacts on Biodiversity

The video discusses the importance of biodiversity, highlighting the detrimental effects of human activities such as habitat destruction, over-harvesting, pollution, introduction of alien species, and climate change. It emphasizes the need to maintain biodiversity for the future and outlines various human-induced threats that reduce species richness and ecosystem stability.

What is one major consequence of habitat fragmentation?

• Populations splitting into smaller, less viable groups

• Increased species richness

• Populations adapting better to changes

• Improved biodiversity

How does over-harvesting affect biodiversity?

• It helps in maintaining ecological balance

• It has no significant impact

• It leads to the depletion of resources and species collapse

• It increases the number of species

What is eutrophication and how does it affect aquatic life?

• A natural way to increase fish population

• A phenomenon that causes algae to bloom, depleting oxygen for other species

• A process that increases oxygen levels in water

• A method to clean polluted water

What is a significant impact of introducing alien species to new habitats?

• They help in increasing the native species population

• They have no impact on biodiversity

• They can disrupt local ecosystems and outcompete native species

• They always improve the local ecosystem

How is climate change predicted to affect biodiversity?

• It will have no effect

• It will only affect polar regions

• It will improve biodiversity globally

• It is expected to cause significant biodiversity loss