Biodiversity and Environmental Issues

The video discusses biodiversity, its importance, and the threats it faces from human activities such as habitat destruction, pollution, and invasive species. It highlights conservation efforts like captive breeding and ecosystem protection. The video also covers global environmental issues like ozone depletion and climate change, emphasizing the need for sustainable practices to maintain a healthy biosphere.

What is the total number of species scientists believe are yet to be discovered?

• 3 million

• 2 million

• 1 million

• 500,000

Which of the following is NOT a threat to biodiversity?

• Habitat alteration

• Pollution

• Invasive species

• Natural selection

What is habitat fragmentation?

• The destruction of all habitats in an area

• The process of creating new habitats

• The merging of different habitats

• The division of ecosystems into smaller pieces

What is the purpose of captive breeding programs?

• To create new species

• To increase the population of endangered species in the wild

• To reduce pollution

• To eliminate invasive species

Which of the following is a major cause of ozone depletion?

• Carbon dioxide emissions

• Nitrogen oxides

• Chlorofluorocarbons (CFCs)

• Methane gas

What is the predicted outcome for the ozone holes after the ban on CFCs?

• They will cause more UV radiation

• They will remain the same

• They will shrink and disappear in 50 years

• They will expand

What is the primary cause of current global warming?

• Volcanic eruptions

• Natural climate cycles

• Increased solar activity

• Human activities adding greenhouse gases

What is one possible effect of global warming?

• Decrease in sea levels

• Increase in polar ice caps

• More stable weather patterns

• Rising sea levels and coastal flooding

What is the main goal of new restrictions and waste management programs?

• To increase industrial production

• To eliminate all wildlife

• To promote urban development

• To reduce environmental pollution

Why is it important to maintain a healthy biosphere?

• To promote technological advancement

• To ensure economic growth

• To prevent environmental issues like flooding and droughts

• To increase human population