The box-and-arrow model below summarizes some of the feedback links observed in the Amazon rain forest. Select true statements, based on whether they are represented by the model. (Note that the boxes and arrows in this model are used differently than those in the nutrient cycle models.) Select all of the ones that apply. A) An increase in CO2 increases the frequency of droughts. B) The death of trees promotes the invasion of grasses. C) Tree growth reduces atmospheric CO2. D) The burning of fossil fuels increases atmospheric CO2. E) Drought increases the frequency of forest fires.
The box-and-arrow model below summarizes some of the feedback links observed in the Amazon rain forest. Select true statements, based on whether they are represented by the model. (Note that the boxes and arrows in this model are used differently than those in the nutrient cycle models.) Select all of the ones that apply. A) An increase in CO2 increases the frequency of droughts. B) The death of trees promotes the invasion of grasses. C) Tree growth reduces atmospheric CO2. D) The burning of fossil fuels increases atmospheric CO2. E) Drought increases the frequency of forest fires.
Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter44: Ecology And The Biosphere
Section: Chapter Questions
Problem 3VCQ: Figure 44.21 In which of the following regions would you expect to find photosynthetic organisms?...
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The box-and-arrow model below summarizes some of the feedback links observed in the Amazon rain forest. Select true statements, based on whether they are represented by the model. (Note that the boxes and arrows in this model are used differently than those in the nutrient cycle models.)
Select all of the ones that apply.
| A) An increase in CO2 increases the frequency of droughts. |
| B) The death of trees promotes the invasion of grasses. |
| C) Tree growth reduces atmospheric CO2. |
| D) The burning of fossil fuels increases atmospheric CO2. |
| E) Drought increases the frequency of forest fires. |
Transcribed Image Text:Burning fossil fuels
Atmospheric CO₂
Tree growth
Logging
Positive feedback (increases)
Negative feedback (decreases)
Air temperature
Droughts
Forest fires
Tree death
Deforestation
Grass invasion
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