Human Activities and the Reduction of Biodiversity

The video discusses the importance of biodiversity in maintaining stable ecosystems and highlights human activities that reduce biodiversity, such as waste management, deforestation, and pollution. It explains how waste management can lead to environmental pollution, affecting aquatic life and plant growth. Deforestation is described as a major threat to habitats, leading to species decline. The video also covers the greenhouse effect, emphasizing the role of greenhouse gases in global warming and its potential consequences, such as rising sea levels and habitat destruction.

Why is biodiversity crucial for ecosystems?

• It increases the number of species.

• It reduces the dependence of one species on another.

• It ensures more food for humans.

• It makes ecosystems more colorful.

What is a major consequence of improper waste management?

• Pollution of water bodies

• Improved air quality

• More land for agriculture

• Increased biodiversity

How does deforestation primarily affect biodiversity?

• By increasing the number of trees

• By improving air quality

• By providing more land for wildlife

• By reducing habitats for species

What is the primary role of greenhouse gases?

• To cool the Earth's surface

• To keep the Earth's surface warm

• To increase biodiversity

• To reduce pollution

What is a potential impact of global warming on polar regions?

• Expansion of icy habitats

• Decrease in sea levels

• Melting of polar ice caps

• Increase in polar bear population