Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 56, Problem 2TYU
Summary Introduction
Introduction:
Earth’s atmosphere can be defined as the atmosphere which is composed of many layers namely troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The earth's atmosphere consists of 78% nitrogen, 21% oxygen, and 1% other gases.
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11)
The chart below compares the greenhouse gas emissions of several fuel sources.
Greenhouse Gas Emissions of
Fuel and Energy Sources
Sugarcane
Ethanol
Cellulosic
Ethanol
Fuel >
Gasoline
Corn Ethanol
Energy >
Source
Fossil
Fuels
Biomass
Biomass
Biomass
Source: Adapted from http://energy.itgoverns.com
An accurate prediction that could be made regarding the information shown in the chart is that
A)
fossil fuels emit the least amount of greenhouse gases
the use of biomass-based fuels instead of fossil fuels will greatly decrease the production
of greenhouse gases
B)
C)
the use of any one of the ethanol sources for fuel will each produce more greenhouse
gases than the use of gasoline for fuel
D)
a total change from gasoline to ethanol as a fuel would have no effect on greenhouse gas
emissions
Greenhouse Gas
Emissions
Which one of the following sentences is NOT true?
Select one:
Compared with other land-based food production systems, fisheries and aquaculture have a relatively small overall carbon footprint.
Global fish production from capture and culture operations contributed up to 1.5% to the world’s CO2 emissions.
CO2 emissions by marine and inland fishing vessels were about 0.5% of the total global emissions.
Being a minor contributor in global terms, fisheries and aquaculture have no opportunities to mitigate emissions of greenhouse gases.
Which of the following is false concerning the carbon cycle?
Decomposers take organic carbon and turn it into inorganic nutrients (phosphorus, sulfur, nitrogen, etc.)
Consumers take in organic carbon (food) and convert the waste into carbon dioxide.
C) Producers take carbon dioxide and turn it into organic carbon (food).
Plants take organic carbon (food) and convert the waste into carbon dioxide.
Chapter 56 Solutions
Campbell Biology
Ch. 56.1 - Explain why it is too narrow to define the...Ch. 56.1 - Identify the four main threats to biodiversity and...Ch. 56.1 - WHAT IF? Imagine two populations of a fish...Ch. 56.2 - How does the reduced genetic diversity of small...Ch. 56.2 - If there were 100 greater prairie chickens in a...Ch. 56.2 - WHAT IF? In 2005, at least ten grizzly bears in...Ch. 56.3 - Prob. 1CCCh. 56.3 - Prob. 2CCCh. 56.3 - Prob. 3CCCh. 56.4 - How can the addition of excess mineral nutrients...
Ch. 56.4 - Prob. 2CCCh. 56.4 - MAKE CONNECTIONS Mutagens are chemical and...Ch. 56.5 - What is meant by the term sustainable development?Ch. 56.5 - Prob. 2CCCh. 56.5 - WHAT IF? Suppose a new fishery is discovered, and...Ch. 56 - Give at least three examples of key ecosystem...Ch. 56 - Why is the minimum viable population size smaller...Ch. 56 - Prob. 56.3CRCh. 56 - Prob. 56.4CRCh. 56 - Prob. 56.5CRCh. 56 - One characteristic that distinguishes a population...Ch. 56 - Prob. 2TYUCh. 56 - Prob. 3TYUCh. 56 - Which of the following is a consequence of...Ch. 56 - Which of the following strategies would most...Ch. 56 - Prob. 6TYUCh. 56 - Prob. 7TYUCh. 56 - Prob. 8TYUCh. 56 - WRITE ABOUT A THEME: INTERACTIONS One factor...Ch. 56 - Prob. 10TYU
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