Human Impact Review

The ozone layer protects us from

• Increased atmospheric heat

• CFCs

• UV rays

• Decreased atmospheric heat

Which of these sets of three items produce CFCs

• cars, factories, and cardboard

• spray cans, cardboard, insulation

• spray cans, refrigerant, cardboard

• spray cans, refrigerant, insulation

The depletion in the Ozone layer is caused by:

• Carbon dioxide

• Nitrous oxide

• Methane

• Chlorofluorocarbon

a renewable resource is ....

• a resource that forms much more slowly than it is consumed

• a natural resource that can be replaced at the same rate at which it is consumed

• any natural material that is used by humans

a nonrenewable resources is...

• any natural material that is used by humans

• a natural resource that can be replaced at the same rate at which it is consumed

• a resource that forms much more slowly than it is consumed

Renewable or Nonrenewable: Coal

• Renewable

• Nonrenewable

Renewable or Nonrenewable: Sunlight

• Renewable

• Nonrenewable

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

Biodiversity refers to

• extinct species
• the variety of species on Earth
• nonrenewable resources
• the rate of species decline

What is an invasive species?

• A native (naturally found) species which are added to an area. 
• A non-native (not naturally found) species added to an area. 
• A keystone species in an environment
• none of the above