Human Impact

​CRITICAL ISSUES: - Global Warming, Pesticides, Population Growth

Ozone and Climate Change

• Global warming and ozone layer depletion are two different problems.

• Global warming is caused by the “greenhouse effect,” which is essential to life as we know it on planet Earth, but can be exacerbated by human activities that emit GHGs.

The Ozone Layer

Multiple Choice

How do invasive plants damage the environment?

• Compete with native species

• Change plant community

• Alter diversity

• All of these

Multiple Choice

The primary cause of invasive species introduction is

• too much food

• human actions

• weather events

• asteroids

Multiple Choice

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

Multiple Choice

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

Multiple Choice

Which of the following is NOT a threat to biodiversity?

• Pollution

• Deforestation

• Invasive Species

• Ecological Succession

Multiple Choice

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

• pollution

• habitat destruction

• overexploitation

• climate change

Multiple Choice

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

Multiple Choice

The largest threat to biodiversity is

• bacteria

• fungi

• humans

• plants

Multiple Choice

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 

Multiple Choice

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

Multiple Choice

Which group includes ALL renewable resources?

• Coal, trees, water, oil

• Water, wind, sun, plants

• Minerals, sun, natural gas, water

Multiple Choice

Identify the process shown in this diagram.

• Extinction

• Toxin Accumulation

• Pollution

• Biomagnification

Multiple Choice

Most water pollution is the result of

• human activities.

• drought.

• volcanic eruptions.

• storms.

Multiple Choice

Concentration of toxins in an organism as a result of ingesting other plants/animals in which the toxins are widely distributed

• biomagnification

• point-source pollution

• artificial eutrofication

• consumable pollution

Multiple Choice

How is acid rain formed?

• Carbon monoxide and carbon dioxide mix with water in the ocean.

• Carbon dioxide and oxygen mix with water in the air.

• Sulfur dioxide and carbon monoxide mix with lake water.

• Sulfur dioxide and nitrogen oxide mix with water in the air.

Multiple Choice

What is bio-remediation?

• Process where organic things are used to break down pollution

• When you use biology to meditate

• When you amend biological things

• Process where you watch bacteria break things down

Multiple Choice

What is a pesticide?

• Chemicals derived from natural and organic sources only

• Any substance used to control pest organisms in any situation

• Only those chemicals registered for pest control

Multiple Choice

What is the major cause for air pollution? 

• factories and cars

• cigarretes 

• deforestation

• oil spills

Multiple Choice

The role of the Ozone layer:

• Protect Earth from infrared radiation.

• Protect Earth from electromagnetic radiation.

• Protect Earth from UV radiation.

Multiple Choice

Depletion of the ozone layer is caused by:

• Methane

• Carbon Dioxide

• UV rays

• Chlorofluorocarbons

Multiple Choice

The hole in the ozone layer is located

• Over the Arctic

• Over Antarctica

Multiple Select

Select ALL correct answers:

• Greenhouse gases: Global Warming

• Greenhouse gases: Hole in the Ozone Layer

• CFCs: Global Warming

• CFCs: Hole in the Ozone Layer

Multiple Select

Adding carbon dioxide to atmosphere has what effect on the globe?

• It decreases atmospheric temperatures

• It increases atmospheric temperatures

• It has no impact

Multiple Choice

What will most likely occur if the population of the world continues to increase at

predicted rates?

• There will be an increase in biodiversity as a result of improvements in

  technology.

• There will be more rapid depletion of natural resources.

• The human race will rapidly become extinct.

• All human diseases will be eliminated.

Multiple Choice

What will most likely happen if a nonnative species is introduced into a stable

ecosystem?

• The native species will change their diet, and the ecosystem will remain

  stable.

• The native species will move to another area, and the ecosystem will remain

  stable.

• The native species will have to compete for resources with the nonnative

  species, and the ecosystem will become unbalanced.

• The native species will share their food with the introduced species, and the

  ecosystem will become unbalanced.

Multiple Choice

A sea turtle has washed up on a remote section of a beach. This is known as a

“stranding.” Stranding occurs when a dead, sick or injured sea turtle washes up on

the shoreline. Which statement best explains why “stranding” should be reported

immediately to local authorities?

• The information can be very useful to biologists and managers who are

  trying to protect the species.

• The information can be very useful to protect sea turtles from predators.

• The information can be very useful to local fishermen who try to catch fish

  that sea turtles eat.

• The information can be very useful to tourists who may want to keep sea

  turtles as pets.