Topic Test Science – Flashcards with Answers
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Which of the following forest management practices is the most harmful to forest ecosystems?
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clearcutting
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The promotion of companies' sustainably harvested rainforest products is intended to _______.
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give the company a competitive advantage
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Which of the following best describes the use of rainforest plants as anticancer drugs?
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Twenty-five percent of the active ingredients in cancer drugs are exclusively rainforest plants.
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Which of the following statements about wildfires in deciduous forests is not true?
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Deciduous forests are unaffected by wildfires.
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What is the effect of wildfires on biodiversity?
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temporary decrease, but long-term increase
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Which of the following statements about forestry education is true?
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Some states have greater access to forestry programs than others.
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Rainforests are not exclusively found near the equator.
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True
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Using prescribed wildfires can prevent natural wildfires from posing as great a risk to property owners.
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True
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Which of the following is not true concerning rainforests?
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Half of all rainforest plants have been tested for their medicinal properties.
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The main characteristic of a carbon sink is that _______.
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it absorbs more carbon than it emits
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Removing a specific group of trees within a small area over a long period of time is _______.
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group selection
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A prescribed burn is _______.
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a controlled fire used to manage forest ecosystems
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How do trees improve water quality?
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Water is filtered as it passes through the root systems of trees.
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How do trees interact with other organisms?
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They provide other organisms with food.
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What percent of the trees cut down are used for something other than paper?
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65%
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Which of the following statements about human impact on trees is true?
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Human activity has had both a positive and negative impact on trees.
