NRES 103 UIUC FINAL UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

NRES 103 UIUC FINAL UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS

Question:
1. All energy is derived from
Answer:
sun

Question:
2. Rather than a food chain, it's more accurate to think in terms of a food web because
Answer:
it focuses on trophic relationships as a network.

Question:
3. Turnover of water, or mixing, in lakes is important in terms of maintaining
Answer:
water quality

Question:
4. How much of the planet's available freshwater is found in the Great Lakes?
Answer:
20%

Question:
5. An extreme form of wave action in the Great Lakes that is associated with rapid changes in wind and
barometric pressure is known as
Answer:
seiche

Question:
6. The west-to-east flow of the Great Lakes is due differences in
Answer:
elevation

Question:
7. Rain, snow, and surface runoff from streams and rivers add water to the Great Lakes, but this is offset by
Answer:
outflow

Question:
8. The last glacier withdrew from North America about
Answer:
12,000 years ago

,Question:
9. What prevented water-bound organisms from migrating from the ocean to the upper Great Lakes?
Answer:
Niagara Falls

Question:
10. What is the shallowest of the Great Lakes?
Answer:
Erie

Question:
11. The film clip "The Rise and Fall of the Great Lakes" describes a number of geologic phenomena that
have changed the lakes over time. One of these has to do with the transition from a northerly outflow of
Great Lakes water to southerly course. This transition was caused by
Answer:
rising land surface after the glacier's retreat

Question:
12. According to the film, "What's so Great About the Great Lakes," of the five lakes, Superior is not
Answer:
the stormiest

Question:
13. Which of the following is not a feature that the Great Lakes share with the oceans?
Answer:
downdrafts

Question:
14. There was a mistake made in naming Lakes Michigan and Huron. What was it?
Answer:
they're actually one lake

Question:
15. Which if the following factors contribute to the uniqueness of the Great Lakes?
Answer:
- they are geographically concentrated
-connectivity
-the location

Question:
16. At this point in time, what is the biggest problem facing the Great Lakes?
Answer:
human ignorance

Question:
17. The concept of a food chain is all about what type of relationships?

, Answer:
trophic

Question:
18. Who eats who in the Great Lakes is not necessarily linear, as exemplified by the lake sturgeon because
Answer:
it is quite large yet eats small prey items

Question:
19. At one point, the Great Lakes were connected to
Answer:
the Atlantic Ocean

Question:
20. Which of the following does not serve as an example of the dynamic nature of the Great Lakes over
geographic time?
Answer:
- salt concentration in Lake Michigan has increased over the last 1000 years

Question:
21. In the recent decades, what is the primary factor that has led to an exponential increase in the
movement of invasive species?
Answer:
global connectivity

Question:
22. The first European to explore the St. Lawrence River was Jacques Cartier, but after 1000 miles he had
to turn back because his party
Answer:
encountered impassible rapids

Question:
23. There have been a number of unintended environmental consequences that have adversely affected the
Lakes once they were connected to the Atlantic Ocean and connections among the lakes were modified by
human activity. A key reason that the consequences were so profound is that
Answer:
the Lakes are relatively young

Question:
24. Compared to the Europeans, the Woodland Culture was
Answer:
lacking in some ways but equal or superior in others

Question:
25. Most invasive species are introduced
Answer:
by humans