Topic Test Rainforests

Correct Answer: A a. Deciduous forests are unaffected by wildfires. b. Lichen and moss growth increases in deciduous forests as a result of wildfires. c. Nutritional quality of new growth increases temporarily after a wildfire. d. The quantity of trees in deciduous forests is unaffected when it occurs less than once every five years.

Correct Answer: A a. clearcutting b. shelterwood cutting c.group selection d. single tree selection

Correct Answer: B a. Most rainforest plants have been tested for their cancer fighting properties. b. Twenty-five percent of the active ingredients in cancer drugs are exclusively rainforest plants. c. The most powerful anticancer drugs are not rainforest plants. d. All of the above

Correct Answer: True True False

Correct Answer: D a. 35% b. 45% c. 55% d. 65%

Correct Answer: C a. produce cheaper products b. promote overconsumption c. give the company a competitive advantage d. produce more expensive products

Correct Answer: C a. Twenty-five percent of western pharmaceuticals are derived from rainforest ingredients. b. Almost 50,000 rainforest species are lost every year due to deforestation. c. Half of all rainforest plants have been tested for their medicinal properties. d. Projections say rainforest deforestation could eliminate half of the world's species.

Correct Answer: B a. Tree roots hor soil in place, preventing runoff. b. Water is filtered as it passes through the root systems of trees. c. An adult tree can store nearly 250 gallons of water. d. All of the above