Resources and Human Impact

How do invasive plants damage the environment?

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

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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

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

• pollution

• habitat destruction

• overexploitation

• climate change

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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

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The largest threat to biodiversity is

• bacteria

• fungi

• humans

• plants

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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 

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.

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1. What are renewable resources?

• . Resources that are used faster than they form

• resources that can replenish themselves over time

• resources that formed over millions of years

• resources that exist only in rural areas

According to the graph, what material’s recycling would reduce the largest portion of America’s trash?

• Metals

• paper

• plastics

• Yard trimmings

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