Human Impact

How do invasive plants damage the environment?

• Compete with native species
• Change plant community
• Alter diversity
• All of these

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

What does conserving resources mean?

• Use as much of the resources as you can
• Only use the resources at school
• Protecting the resource so it does not run out

Which group includes ALL renewable resources?

• Coal, trees, water, oil
• Water, wind, sun, plants
• Minerals, sun, natural gas, water

Most water pollution is the result of

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

What is the major cause for air pollution? 

• factories and cars
• cigarretes 
• deforestation
• oil spills

Environmentalists are hoping to protect endangered organisms by calling for a reduction in the use of pesticides, because loss of these organisms would:

• increase the mutation rate in plants
• cause pesticides to become more toxic to insects
• reduce biodiversity in various ecosystems
• decrease the space and resources available to other organisms

problem caused by increased levels of CFC's in the atmosphere

• global warming
• thermal pollution 
• greenhouse effect
• ozone depletion