Human Impact

How do invasive plants damage the environment?

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

The primary cause of invasive species introduction is

• too much food

• human actions

• weather events

• asteroids

Which of these is one cause of deforestation?

• Urbanization

• Buying a Christmas tree during the holidays

• Overbreeding birds in the wild

• Cutting down the tree in your backyard

What is deforestation?

• Clearing Earth's forests on a massive scale
• Eating too much vegetables
• Going to a forest and pulling weeds
• Clearing the five trees in my backyard

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

Why are fossil fuels a nonrenewable resource? 

• they take millions of years to replace 
• they can be used over and over again
• they are used to heat and light homes 
• they cause air and water pollution 

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