Fire and Nature Answers

Wildfires open a new seedbed that can be used for new plant growth.

How do wildfires help control plant disease?a.Wildfires are more likely to kill off plants that are likely to spread disease.b.Wildfires help control populations of fungi and insects that can lead to plant disease.c.Wildfires thin underbrush which leads to plant disease.d.All of the above

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

Which of the following statements about wildfires is true?a.Wildfires allow certain plant types to reproduce by cracking their seeds.b.Natural wildfires should be prevented to maintain wildlife habitats.c.The loss of undergrowth caused by wildfires is detrimental to an ecosystem.d.All of the above

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

Fire ecology is _______.a.an old branch of scienceb.a way for scientists to prevent accidental wildfiresc.the study of how fire affects ecosystemsd.all of the above

Which of the following statements about prescribed burns is true?a.Prescribed burns will always have detrimental effects on ecosystems, but should be used to protect homes.b.Prescribed burns are necessary for preventing natural wildfires.c.Prescribed burns can help maintain healthy ecosystems.d.None of the above

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

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

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

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%