BBE Quiz Questions and Answers 2024 Verified 100%
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 mat...
BBE Quiz Questions and Answers 2024 Verified 100%
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
Natural Resources Include
Land
Water
Fossil Fuels
Non-metallic minerals
Metallic minerals
Air
The US is a net exporter of iron ore
True
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
Biorenewable resources are a subset of nonrenewable resources
False
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
In the book "The Irresponsible Pursuit of Paradise" the author suggests that all of
the products we consume have their origin in ________________.
Mining, Forest Harvesting, or Agriculture
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%
What was the current R/P ratio for crude oil in 2010?
About 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%
According to Hans Rosling, how many people live below the poverty line and
don't have electricity?
2 billion
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?
25 years
How to calculate R/P ratio
Proven reserves / consumption rate
,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. We really will never run out of anything -- it may get unrealistic with
expense but we won't run out
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
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%
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?
80 million more
One of the big environmental issues with mining of metals is the tailing ponds.
What are "tailings"?
The leftover crushed rock after the metals are extracted.
When people talk about "ore" what are they referring to? If you don't know, you
may need to google it.
A naturally occurring solid material from which a metal or valuable mineral can be
profitably extracted.
Which impact is 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?
Cheaper because of cheap labor, no local supply, cheaper because of relaxed
environmental regulations
From the video, the taconite in the Mesabi formation contains about ___% iron.
30%
The Mesabi Iron Range mine video spent some time highlighting the steps the
company took to protect the environment.
True
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 material
Chapter 7 of our text quoted _______(what author)____ when they cited "The
tendency for environmental impacts to rise as ore quality and accessibility
, decline suggests there are limits to metals consumption even if physical
availability is not limited."
Canadian mining experts
The carbon cycle is drawn out in Figure 1. How much carbon is being emitted
from human activity?
9 billion metric tons
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
In the NASA video showing carbon dioxide concentrations in the atmosphere (A
Year in the Life of Earth's CO2) the red colors in the northern hemisphere start to
fade (concentrations are reduced) because of ____________.
Plant uptake of carbon dioxide
The cool graphic on carbon dioxide concentrations over time (since like 800,000
BCE) showed some interesting things. What was the approximate concentration
of CO2 in the atmosphere in 1979?
330 ppm
Water vapor is considered a greenhouse gas
True
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 (when no plants are growing)
Figure 1 notes _________ billion metric tons of carbon being emitted from
microbial respiration.
60
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 tons
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 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 kilograms (about 2200 lbs)
In an earlier lesson you learned about the history of the transition from wood to
oil and coal as the primary fuel source. Since about 1800 there has been a 33%
increase in carbon dioxide levels, globally. During this time period concentrations
went from about ________________ to ______________.
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