Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 13PIAT
One of the contributing factors to environmental pollution and climate change is the production of CO2 via the combustion of fossil fuels. What is a benefit of using biofuels, produced by living organisms, if they will release similar amounts of CO2 when used to meet our energy demand?
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Burning biomass to produce electricity avoids many of the problems associated with gathering, refining, transporting, and burning fossil fuels. Yet the use of biomass as fuel is not without its own set of problems. What challenges might arise from a large-scale conversion to biomass energy? How do these challenges compare with those encountered with fossil fuels? Which set of challenges do you think is more likely to be overcome? Does one energy source have more benefits and fewer costs than the others? Explain.
according to the chart pie
1)what percentage of energy is produced by fossil fuel?
2)what percentage of energy is produced by energy
technologies?
3) how much energy is produced by all alternative energy
combined?
U.S. energy consumption by energy source, 2017
Total 97.7 quadrillion
British thermal units (Btu)
Total = 11.0 quadrillion Btu
geothermal 2 %
solar 6%
petroleum
37%
- wind 21%
biomass waste 4%
biofuels 21%
renewable
energy 11%
nuclear
electric
power
9%
biomass
45%
natural gas
29%
wood 19%
coal
14%
hydroelectric 25%
The connection between producers and consumers is that only:
A) heterotrophs can perform photosynthesis to produce energy for all life
B) autotrophs can use sun energy to u to produce energy for all organisms
C) producers use cellular respiration to produce energy for all life
D) heterotrophs can perform cellular respiration producing oxygen for all organisms
Chapter 10 Solutions
Biological Science (6th Edition)
Ch. 10 - 1. In antenna complexes, how is energy transferred...Ch. 10 - Why is chlorophyll green? a. It absorbs all...Ch. 10 - 3. What do the light-capturing reactions of...Ch. 10 - At what point in photosynthesis is the...Ch. 10 - 5. Why is the chlorophyll in chloroplasts less...Ch. 10 - Describe the three phases of the Calvin cycle and...Ch. 10 - Prob. 7TYUCh. 10 - 8. CAUTION Which process in plants generates the...Ch. 10 - Predict how the following conditions would affect...Ch. 10 - Prob. 10TYPSS
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- A coal fire plant uses 1 kg of coal to generate 1000 kWh of electricity and emits 50 kg of CO2 and 5 kg of SO2 per day. (1) If the functional unit is 1 kWh of electricity, please relate the emissions to FU. (2) What are the emissions for a plant generating 2000 kWh of electricity? (3) What if the functional unit is 1000 kWh? (4) What if the functional unit is 1000 MJ of energy? (5) What is the functional unit is 1kg of coal?arrow_forwardNonrenewable Energy Resources Describe the sources of energy Discuss fossil fuels: their formation, extraction, use, and impact What is nuclear power and its environmental and human impact? How to achieve energy efficiency and conservation?arrow_forwardWhat % of sunlight reaching the Earth is converted to chemical energy by photoautrophs such as plants and algae? O -10% O -0.1% O -1% O -0.01%arrow_forward
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