Estimates are that 11.6 x 106 m2 of rainforest will be destroyed in two hours. Assuming that the initial area of tropical rainforests is 20 x 1012 m2: a. What is the exponential rate of rainforest destruction? b. If this rate is representative of the past and future and there were 24.5 x 1012 m2 of rainforest in 1975, how much rainforest was left (in m2) in 2010? c. It is estimated that tropical rainforests remove or take-up 0.83 kg(C)/m2-year. How much less carbon [kg(C)] was removed in 2010 by rainforests compared to that removed in 1975? 4. The default carbon dioxide emission factor for biodiesel fuel is 70,800 kg/TJ, and the emission factor for diesel fuel is 74,100 kg/TJ. a. Which diesel fuel, biodiesel or “regular” diesel fuel, has the greater carbon intensity per unit of energy?
Estimates are that 11.6 x 106 m2 of rainforest will be destroyed in two hours. Assuming that the initial area of tropical rainforests is 20 x 1012 m2: a. What is the exponential rate of rainforest destruction? b. If this rate is representative of the past and future and there were 24.5 x 1012 m2 of rainforest in 1975, how much rainforest was left (in m2) in 2010? c. It is estimated that tropical rainforests remove or take-up 0.83 kg(C)/m2-year. How much less carbon [kg(C)] was removed in 2010 by rainforests compared to that removed in 1975? 4. The default carbon dioxide emission factor for biodiesel fuel is 70,800 kg/TJ, and the emission factor for diesel fuel is 74,100 kg/TJ. a. Which diesel fuel, biodiesel or “regular” diesel fuel, has the greater carbon intensity per unit of energy?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Estimates are that 11.6 x 106 m2 of rainforest will be destroyed in two hours. Assuming
that the initial area of tropical rainforests is 20 x 1012 m2:
a. What is the exponential rate of rainforest destruction?
b. If this rate is representative of the past and future and there were 24.5 x 1012 m2 of
rainforest in 1975, how much rainforest was left (in m2) in 2010?
c. It is estimated that tropical rainforests remove or take-up 0.83 kg(C)/m2-year.
How much less carbon [kg(C)] was removed in 2010 by rainforests compared to
that removed in 1975?
4. The default carbon dioxide emission factor for biodiesel fuel is 70,800 kg/TJ, and the
emission factor for diesel fuel is 74,100 kg/TJ.
a. Which diesel fuel, biodiesel or “regular” diesel fuel, has the greater carbon
intensity per unit of energy?
that the initial area of tropical rainforests is 20 x 1012 m2:
a. What is the exponential rate of rainforest destruction?
b. If this rate is representative of the past and future and there were 24.5 x 1012 m2 of
rainforest in 1975, how much rainforest was left (in m2) in 2010?
c. It is estimated that tropical rainforests remove or take-up 0.83 kg(C)/m2-year.
How much less carbon [kg(C)] was removed in 2010 by rainforests compared to
that removed in 1975?
4. The default carbon dioxide emission factor for biodiesel fuel is 70,800 kg/TJ, and the
emission factor for diesel fuel is 74,100 kg/TJ.
a. Which diesel fuel, biodiesel or “regular” diesel fuel, has the greater carbon
intensity per unit of energy?
![Estimates are that 11.6 x 106 m² of rainforest will be destroyed in two hours. Assuming
that the initial area of tropical rainforests is 20 x 10¹2 m²:
a. What is the exponential rate of rainforest destruction?
b. If this rate is representative of the past and future and there were 24.5 x 10¹2 m² of
rainforest in 1975, how much rainforest was left (in m²) in 2010?
c. It is estimated that tropical rainforests remove or take-up 0.83 kg(C)/m²-year.
How much less carbon [kg(C)] was removed in 2010 by rainforests compared to
that removed in 1975?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F98ba27a3-ab69-49b1-ad1c-2aa6f8226754%2F95f2b66d-a6b7-4c01-a0d1-631e3ef928e1%2F1uidtse_processed.png&w=3840&q=75)
Transcribed Image Text:Estimates are that 11.6 x 106 m² of rainforest will be destroyed in two hours. Assuming
that the initial area of tropical rainforests is 20 x 10¹2 m²:
a. What is the exponential rate of rainforest destruction?
b. If this rate is representative of the past and future and there were 24.5 x 10¹2 m² of
rainforest in 1975, how much rainforest was left (in m²) in 2010?
c. It is estimated that tropical rainforests remove or take-up 0.83 kg(C)/m²-year.
How much less carbon [kg(C)] was removed in 2010 by rainforests compared to
that removed in 1975?
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