BBE Final All Possible Questions and Answers with complete solution;(100% accurate)
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Course
BBE
Institution
BBE
BBE Final All Possible Questions and Answers with complete solution;(100% accurate)
According to Dave Morris's 'The Once and Future Carbohydrate Economy', "In 1820, Americans used two tons of [plant matter] for every one ton of [coal/oil]... But by 1975 Americans used ________ ton(s) of [coal/o...
BBE Final All Possible Questions and Answers 2023-2024
with complete solution;(100% accurate)
According to Dave Morris's 'The Once and Future Carbohydrate Economy', "In
1820, Americans used two tons of [plant matter] for every one ton of [coal/oil]...
But by 1975 Americans used ________ ton(s) of [coal/oil] for every one ton of
[plant matter]."
eight
Biorenewable resources are a subset of non-renewable resources.
false
Natural resources include:
air, metallic minerals, water, non-metallic minerals, fossil fuels, land
Which of the following are considered biorenewable?
animal manure, sewage, trees
According to the 2017 U.S. Energy Information Administration's report on proven
crude oil reserves by country, the top two countries are 1. Venezuela and 2. Saudi
Arabia. Which country ranks third for largest volume of proven reserves?
Canada
In the textbook reading from Irresponsible Pursuit of Paradise (IPP), Dr. Bower
gave three reasons why the US is such a large importer of raw materials. What
were they?
We consume a lot.
There is opposition to the environmental impacts of raw material extraction.
We don't recycle enough.
In the Irresponsible Pursuit of Paradise (IPP) text the author wrote that the three
pillars of sustainability are ecology, economy and society. What was his point?
A healthy society must balance economics with the environmental protection.
When we think about consumption of resources there is both indirect and direct
consumption. Match the following:
lesson 2
If someone asked you if we should be concerned about running out of petroleum
(crude oil) in about 40 years what would your response be?
No, probably not.
In the video Hans talked about the 4 billion people that live between the poverty
line and "the airline". Of these 4 billion about how many people have washing
machines?
1 billion
In his video Hans Rosling indicated that 1/7th of the population (1 billion of the
total of 7 billion) use about ________ of the energy.
50%
Globally consumption of minerals is about 12 tons per person per year. However,
this is slightly misleading because
wealthy developed countries consume much more and poorer countries consume much
less.
,Figure 2 showed the % consumption of different resources for the developed
nations. It showed that in the year 2010 these countries consumed about
__________ of the global petroleum consumption.
50%
What was the current R/P ratio for crude oil in 2010?
43 years
The graph showing the % consumption of various materials from the developed
nations was super interesting. It showed that these countries often consumed
about 50% of the global resources yet represent only about _______% of the
global population.
11%
Assume the Proven Reserves of the mineral bambium are 50 tons and the
consumption rate of bambium is 2 tons per year. What is the R/P ratio?
(Note: with minerals were production is the same as consumption as there is no
point in mining if it is not being sold and consumed.)
25 years
Assume the world population at the end of 2017 was 7.4 billion people. The
population growth rate in 2018 is 1.07%. How many more people were on the
planet at the end of 2018?
about 80 million more
The Mesabi Iron Range mine video spent some time highlighting the steps the
company took to protect the environment.
True
We did not spend too much time on specific environmental impacts; we just
listed different types of potential environmental impacts:
impacts to land
impacts to water
impacts to air
impacts to human health
Some may argue this, but which of these did we say was most important?
impacts to human health
What example was used to explain the concept 'it takes more resources to extract
more resources"?
Mountaintop coal mining
Which of the following reasons were given for why countries import resources?
It's cheaper because of cheap labor.
There is no local supply.
It's cheaper because of relaxed environmental regulations.
From the video, the taconite in the Mesabi formation contains about ___% iron.
30%
What was one of the reasons, cited in the text, that there was a spike in oil prices
in the 1970's?
US oil production slowed
What are people most concerned about when they are arguing "Not in my
backyard"?
, Local environmental issues
Which best describes the concept "it takes resources to extract resources"?
It takes water and fossil fuels to extract minerals or fossil fuels.
Given that we don't want to mine new resources because of environmental
damage, we have to find ways to reduce consumption. What did Chapter 7 say
about steel recycling?
There is a significant benefit in recycling steel.
Because we are starting to see consumption as the problem Chapter 7 suggested
a couple of options: recycling and materials use efficiency. What best describes
materials use efficiency?
Building the same product with less materials
If you watch the animation called "Pumphandle", it tracks CO2 concentrations
back 800,000 years. In the animation, pre-industrial concentrations were about
___________.
280 ppm
The carbon cycle is drawn out in Figure 1. How much carbon is being emitted
from human activity?
Correct!
9 billion metric units
Plants take carbon dioxide out of the atmosphere because of photosynthesis.
Living plants also put carbon dioxide back in the atmosphere through a process
called _____________.
respiration
Figure 1 notes _________ billion metric tons of carbon being emitted from
microbial respiration.
60
In the NASA video showing carbon dioxide concentrations in the atmosphere (A
Year in the Life of Earth's CO2) what season showed the highest concentration of
carbon dioxide in the northern hemisphere?
Winter
Figure 3 shows the carbon dioxide emissions to the atmosphere from the
different sources. In 1900 the greatest CO2 emissions were from _________.
Land Use change
True or False? Water vapor is considered a greenhouse gas.
True
Since this class is about biorenewable resources (stuff from plants) it is good to
note that plants take up carbon from the atmosphere in the form of carbon
dioxide. According to Figure 1, how much carbon do plants take up through
photosynthesis?
123 billion metric units
The topic of biorenewable resources draws on information from all over the
world. As such, sometimes the measurements we use are in metric (e.g. kilogram,
meter) and other times standard units (e.g. lbs, feet). Anything about the carbon
cycle is done in the metric system. "Tons" in the carbon cycle refers to metric
tons. How much is a metric ton?
1000 kg
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