Environmental Impacts and Climate Change

The video discusses human impacts on the environment, focusing on waste management, land use, deforestation, and global warming. It explains how population growth increases resource demand, leading to pollution and habitat destruction. The importance of peat bogs as carbon sinks and the effects of deforestation on biodiversity are highlighted. The video also covers the greenhouse effect, emphasizing the role of human activities in enhancing global warming. Finally, it provides a recap and questions for review.

What has been the trend in human population over the last 100 to 200 years?

• It has decreased significantly.

• It has remained stable.

• It has increased dramatically.

• It has fluctuated without a clear trend.

Which of the following is a major cause of water pollution?

• Deforestation

• Fertilizers from agriculture

• Burning of fossil fuels

• Urban development

What is a significant environmental impact of using peat bogs?

• They are primarily used for building materials.

• They release large amounts of carbon when disturbed.

• They increase biodiversity.

• They are a renewable resource.

What is one of the main reasons for deforestation in tropical rainforests?

• To grow staple crops like rice

• To increase urban green spaces

• To create wildlife reserves

• To reduce carbon emissions

How does deforestation contribute to increased carbon dioxide levels?

• By enhancing photosynthesis

• By increasing the number of trees

• By reducing the need for fossil fuels

• By burning trees and reducing carbon sinks

What is the primary role of the greenhouse effect?

• To cool the Earth's surface

• To reduce atmospheric methane

• To maintain Earth's temperature for life

• To increase biodiversity

Which gases are primarily responsible for the enhanced greenhouse effect?

• Carbon dioxide and methane

• Oxygen and nitrogen

• Sulfur dioxide and ozone

• Hydrogen and helium

What is a potential consequence of rising sea levels?

• Stabilization of global temperatures

• Increased biodiversity

• Loss of habitats due to flooding

• More polar bear habitats

How might climate change affect the distribution of organisms?

• All species will migrate to colder regions.

• Some species may not survive in their current habitats.

• Species will not be affected by climate change.

• All species will thrive in new areas.

Why is rapid climate change a threat to biodiversity?

• Species can easily adapt to new conditions.

• It reduces the need for conservation efforts.

• It provides more resources for all species.

• Species may not adapt quickly enough to survive.