A list of environmental issues is shown below.

• Rabbits transported from Europe overrun and

deplete farmlands in Australia.

• Many areas in the southeastern United States

are overgrown with the kudzu plant from Asia.

• In parts of New York State, bluebirds must

compete with starlings originally brought here

from England.

All of these issues are the result of

(1) introduction of nonnative species into stable

ecosystems

(2) genetic engineering without using adequate

safety precautions

(3) preservation of habitats due to human

population growth

(4) use of foreign species to replace native

predators