What option is available to help Fraser fir populations survive this?

1.What is directly compromising the Fraser fir tree species populations?

A. Too cold of conditions for growth

B. Over harvesting from tree plantations

C. A root fungus

D. Competition by other pine tree species



2. What option is available to help Fraser fir populations survive this parasitic infection?

A. Grafting Fraser fir seedlings onto the stems of resistant fir populations.

B. Development of a much more powerful fungicide to use on the trees.

C. Growing the firs only in regions of the United States where the fungus does not thrive.

D. Keeping their roots dry, so that the fungi have an unfavorable growing environment.



3.Why is the fungus attack on firs such an economic detriment?

A. Fraser firs are the most important money crop in North Carolina

B. Fraser firs are the key type of wood used in the building industry.

C. Fraser firs are the principal tree used in the production of paper.

D. Fraser firs are an expensive ornamental tree for people's yards.



4.Where was the fungus Phythoptora believed to have originated from?

A. Europe

B. Southeast Asia

C. South America

D. Australia



5.What recently has caused the fungal spores to invade soil in tree plantations more extensively than in the past?

A. Resistance to fungicides

B. Extremely cold temperatures

C. Heavy rains with widespread flooding

D. Cloud cover producing higher shade amountsWhat option is available to help Fraser fir populations survive this?
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