Human Impact Test Corrections

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

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

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

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

A human activity that has the MOST negatively impacted air quality is?

• building nuclear power plants.

• growing crops

• using solar panels

• burning coal

Look at the diagram of a stream with toxic chemicals. The diagram models how toxic runoff can pollute a stream and also...

• create algae blooms.

• produce acid rain.

• pollute the groundwater.

• cause soil erosion.