Environmental Modification and Its Impacts

The video reviews how humans modify the environment to meet their needs and wants, highlighting both positive and negative consequences. Examples include building cities, using fertilizers, and constructing dams. Each modification has benefits, like economic growth and increased food production, but also drawbacks, such as habitat destruction and pollution.

What does it mean to modify the environment?

• To change the surroundings to meet human needs

• To protect endangered species

• To reduce pollution levels

• To preserve natural habitats

Why do humans modify the environment?

• To meet their needs and wants

• To increase biodiversity

• To reduce global warming

• To preserve natural resources

What is an example of a positive consequence of environmental modification?

• Loss of biodiversity

• Destruction of animal habitats

• Pollution of water bodies

• Increased food production

Which of the following is a positive consequence of building new cities?

• Loss of green spaces

• More homes and businesses

• Destruction of animal habitats

• Increased pollution

What is a negative impact of constructing new cities?

• Improved public transportation

• Better healthcare facilities

• Increased job opportunities

• Destruction of forests

How do fertilizers benefit farmers?

• By conserving water

• By reducing soil erosion

• By increasing crop yields

• By protecting wildlife

What is a negative effect of using fertilizers?

• Increased food production

• Enhanced plant growth

• Improved soil quality

• Pollution of rivers and lakes

What is the primary purpose of building a dam?

• To create recreational areas

• To hold back water

• To increase fish populations

• To reduce air pollution

Which of the following is a benefit of building dams?

• Increases flooding

• Reduces sediment flow

• Generates hydroelectric power

• Destroys river ecosystems

What is a negative consequence of building dams?

• Generates renewable energy

• Provides drinking water

• Destroys river ecosystems

• Helps control flooding