Resources and Living Things OJRMS

Environmental Issues

1

Anything that occurs naturally in the environment and is used by people is called a(n)

What is a natural resource?

1

Pollution can be grouped into two categories, name both of them.

What is point and non-point pollution?

1

Describe an example of point source pollution.

A pipe spilling polluted water into a stream.

1

What is environmental science?

The study of natural processes that occur in the environment and how humans affect them. 

1

Any change in the environment that has a negative effect on living things is __________________.

Pollution

Natural Resources

1

Coal, oil and gold are considered ________ resources because they are not easily replaced in a human's lifetime.

nonrenewable

1

When a person uses a large number of resources, they are said to have a ____________ ecological footprint.

large 

1

What are two ways that you can decrease or lower your ecological footprint?

Decrease your use of:

1. Electricity

2. Water

3. Food waste

4. Use of fossil fuels (gasoline, etc)

1

After 1650, the world's human population began increasing. What are two reasons why the human population grew so quickly?

Improvements in medicine, technology, sanitation

1

Name two renewable resources.

Water, Oxygen, Trees, etc

Forests and Fisheries

1

When a logger cuts down all the trees at once in a area, it is an example of _______________  _________________.

Clear Cutting

1

What are the advantages of selective cutting in a forest?

Preserves the habitat for wildlife, decreases erosion, better for the environment

1

What are the advantages of clear cutting?

Costs less, trees are easily and quickly removed, safer for loggers

1

What is aquaculture?

The raising of fish for food in an aquatic environment.

1

How do the laws that limit the number and size of fish that may be caught help protect fishery resources?

Fishing limits can help increase the population of remaining fish in a fishery because not as many fish can be caught. Smaller fish can be put back so that they can reproduce and add to the growing supply of fish. 

Biodiversity

1

Name two factors that can affect an area's biodiversity?

Size 

Climate 

Diversity of niches

1

What are the advantages of a diverse gene pool?

Healthy populations of wildlife have a variety of traits that allow them to survive diseases and reproduce to pass on the better traits. 

1

What is a keystone species?

A keystone species influences the survival of other species in the area.

1

What is captive breeding?

Captive breeding is mating wildlife in zoos or wildlife preserves to allow the populations to come back from being endangered. 

1

What is a threatened species?

A species that has a population that is decreasing and may become endangered.

Surprise!!

1

What is an endangered species?

A species whose population is decreasing and is in danger of becoming extinct.

1

What is an extinct species?

A species that no longer has any living members on Earth.

1

The loss of a natural habitat is called:

Habitat Desectruction

1

What is poaching?

The illegal killing or removal of an animal from its habitat. 

1

How did eagles get DDT into their bodies? (3 or 4 steps)

1. DDT was sprayed on crops to kill bugs

2. Dead bugs washed into the stream

3. Fish ate the bugs with DDT

4. Eagles ate the fish with DDT