Topic Test Answers

Which of the following is not true concerning rainforests?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.

Which of the following statements about human impact on trees is true?a.Human activity always has a negative impact on trees.b.All human uses of trees require destruction of the trees.c.Human activity has had both a positive and negative impact on trees.d.Cutting down trees is the only activity that has a negative impact on trees.

Rainforests are not exclusively found near the equator.

What percent of the trees cut down are used for something other than paper?a.35%b.45%c.55%d.65%

What is the effect of wildfires on biodiversity?a.temporary decrease, but long-term increaseb.temporary increase, but long-term decreasec.increasesd.decreases

Which of the following statements about wildfires in deciduous forests is not true?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.

Which of the following statements about forestry education is true?a.All educational facilities cover forestry to the same depth.b.Individuals can pursue doctorates in forestry in any state.c.Program focus will remain the same from state to state.d.Some states have greater access to forestry programs than others.

Which of the following forest management practices is the most harmful to forest ecosystems?a.clearcuttingb.shelterwood cuttingc.group selectiond.single tree selection

Using prescribed wildfires can prevent natural wildfires from posing as great a risk to property owners.

How do trees improve water quality?a.Tree roots anchor 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

How do trees interact with other organisms? a. They provide mammals with food. b. They receive shelter from insects. c. They obtain food from other plants. d. All of the above Please select the best answer from the choices provided

The promotion of companies’ sustainably harvested rainforest products is intended to _______.a.produce cheaper productsb.promote overconsumptionc.give the company a competitive advantaged.produce more expensive products

Which of the following best describes the use of rainforest plants as anticancer drugs?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

The main characteristic of a carbon sink is that _______.a.it emits no carbonb.it absorbs no carbonc.it emits more carbon than it absorbsd.it absorbs more carbon than it emits

When is the carbon stored in plants released?a.during cellular respirationb.during photosynthesisc.when they died.none of the above