Human Impact and Agriculture

Which of the following is NOT a threat to biodiversity?

• Pollution

• Deforestation

• Invasive Species

• Ecological Succession

The threat to biodiversity that occurs when the homes of different species are destroyed

• pollution

• habitat destruction

• overexploitation

• climate change

When human-made chemicals and garbage find their way into nature and harm the air, soil, and water it is called

• pollution

• habitat destruction

• overexploitation

• climate change

The largest threat to biodiversity is

• bacteria

• fungi

• humans

• plants

Most water pollution is the result of

• human activities.
• drought.
• volcanic eruptions.
• storms.

What long-term impact could the destruction of large areas of forests have on Earth?

• decreased rates of erosion
• increased atmospheric carbon dioxide levels
• decreased amounts of acid rain
• increased atmospheric oxygen levels

Why is it important to conserve the biodiversity of Earth?

• to decrease the amount of global predator populations
• to decrease the stability of major global ocean currents
• to increase the stability of ecosystems during environmental changes
• to increase the amount of nonrenewable resources located in the lithosphere

Invasive species are:

• non-native
• harmful to an ecosystem
• organisms that can lack predators in the new environment
• all of the answers are correct

The number one threat to biodiversity

• pollution
• fragmentation
• habitat destruction
• limiting factors

How can land pollution harm the environment?

• It can release greenhouse gases

• It can destroy the habitats of animals

• It can allow for harmful chemicals to enter the soil

• All of the above