Understanding Human Impact on Ecosystems

What is the primary focus of the lesson on human roles in ecosystems?

• The history of ecosystems

• The role of animals in ecosystems

• The importance of sustainable ecosystems for human survival

• The impact of technology on ecosystems

How did Aboriginal peoples manage to live sustainably for thousands of years?

• By living in harmony with nature and using resources wisely

• By avoiding any interaction with nature

• By relying on imported resources

• By using advanced technology

What is biodiversity?

• The variety of ecosystems in a given area

• The number of humans in an area

• The variety of species and genetic differences within them

• The amount of sunlight an ecosystem receives

Which level of biodiversity refers to the genetic differences within a species?

• Habitat biodiversity

• Genetic biodiversity

• Ecosystem biodiversity

• Species biodiversity

What is a major consequence of human activities like deforestation?

• Species extinction

• Improved air quality

• Decreased human population

• Increased biodiversity

What is the estimated number of species that become extinct daily due to human activities?

• 35 to 150

• 1 to 5

• 200 to 300

• 10 to 20

What is the primary cause of most species extinctions?

• Predation by other species

• Natural disasters

• Human activities related to resource extraction and population growth

• Climate change

Why is indigenous knowledge considered valuable in understanding ecosystems?

• It focuses on technological advancements

• It offers insights into sustainable living and resource management

• It is based on modern scientific methods

• It provides a historical perspective on ecosystem changes

What global effort has been made to address the loss of biodiversity?

• The increase in industrial activities

• The development of a convention on biodiversity by the United Nations

• The reduction of human population

• The creation of new technology

What is the main theme of Nancy Turner's book mentioned in the lesson?

• The food plants of interior First Peoples and sustainable practices

• The history of European colonization

• The impact of climate change on ecosystems

• The technological advancements in agriculture