Question 1

Which of the following best describes the concept of 'ecological footprint' as it relates to your daily life?

Accepted Answer

The total area of land and water required to produce the resources you consume and absorb your waste.

Question 2

If every US citizen ate one local/organic meal per week, the country would reduce oil consumption by 1.1 million barrels per week. Which of the following best explains why?

Accepted Answer

Local/organic food requires less transportation and fewer synthetic inputs, reducing fossil fuel use.

Question 3

Which energy source provides the largest share of Oregon's electricity, according to the provided data?

Accepted Answer

Hydro

Question 4

A pound of beef requires 1,857 gallons of water and 7 pounds of corn to produce. If a family of four eats 2 pounds of beef per week, how much water is used for their beef consumption in a year?

$$	ext{Total water} = 2 	ext{ lb/week} 	imes 1,857 	ext{ gal/lb} 	imes 52 	ext{ weeks}$$

Accepted Answer

$$193,128$$ gallons

Question 5

Shrimp trawling is considered unsustainable primarily because:

Accepted Answer

It has the highest bycatch rate, resulting in 3-15 pounds of bycatch for every pound of shrimp.

Question 6

Which of the following actions would most directly reduce your personal impact on water resources?

Accepted Answer

Eating less beef and more plant-based foods.

Question 7

If Oregon's electricity resource mix is 38.74% hydro and 35.46% coal, what percentage comes from sources other than hydro and coal?

$$100\% - (38.74\% + 35.46\%)$$

Accepted Answer

$$25.8\%$$

Question 8

Which of the following is a direct ecological benefit of buying seafood recommended by the Monterey Bay Aquarium Seafood Watch program?

Accepted Answer

It supports fisheries that use sustainable practices, reducing overfishing and bycatch.

Question 9

A student wants to reduce their carbon footprint. Which combination of actions would be most effective based on the study materials?

Accepted Answer

Eat more local/organic meals and reduce meat consumption.

Question 10

Which of the following best explains why the source of your electricity matters for environmental sustainability?

Accepted Answer

Different energy sources have varying impacts on greenhouse gas emissions and resource use.

Question 11

If a city switches from coal (35.46% of its electricity) to hydroelectric power (38.74%), what is a likely environmental outcome?

Accepted Answer

A decrease in greenhouse gas emissions.

Question 12

Which of the following is a real-world example of bycatch, as discussed in the study materials?

Accepted Answer

Catching sea turtles and non-target fish species in shrimp trawling nets.

Question 13

If you want to pursue a career in ecology, which academic department would NOT typically offer relevant courses?

Accepted Answer

Mechanical Engineering

Question 14

Which of the following best describes the relationship between food production and water use?

Accepted Answer

Animal-based foods generally require more water to produce than plant-based foods.

Question 15

A student calculates their annual water use for eating chicken, consuming 1 lb per week. How much water is used in a year?

$$	ext{Total water} = 1 	ext{ lb/week} 	imes 469 	ext{ gal/lb} 	imes 52 	ext{ weeks}$$

Accepted Answer

$$24,388$$ gallons

Question 16

Which of the following is a likely consequence of unsustainable seafood harvesting practices?

Accepted Answer

Decline in non-target species populations due to high bycatch.

Question 17

Which of the following is NOT a direct way to reduce your ecological impact based on the study materials?

Accepted Answer

Buying imported processed foods.

Question 18

Which of the following best explains why the origin of your pet matters ecologically?

Accepted Answer

Pets sourced from wild populations can negatively impact native species and ecosystems.

Question 19

Which of the following is a multi-step strategy to reduce both water and energy use in your diet?

Accepted Answer

Eat less meat, choose local/organic produce, and avoid food waste.

Question 20

Which of the following best describes the role of academic departments in ecology education?

Accepted Answer

Departments like Zoology, Botany, and Environmental Sciences offer courses and research opportunities in ecology.

10.2 Ecology and Human Impact: An Introduction to Environmental Interactions

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