Set2-L1
1. What is the main purpose of the lecture?
A. To explain the diversity of animals that once lived on a Viking farm
B. To compare Viking settlements in Greenland and Norway
C. To discuss a new method of archaeological research
D. To examine archaeological evidence of climate change in Greenland
2. According to the speakers, what advantage does using dirt DNA have over using the traditional DNA technique?
A. It takes less time.
B. It can be done with simpler equipment.
C. It gives more types of information.
D. It gives more accurate results.
3. According to the professor, how did researchers check the accuracy of the dirt DNA results?
A. By studying written records left by the Vikings
B. By comparing the results with earlier archaeological findings
C. By calculating the rate at which DNA leaches through permafrost
D. By studying Viking housing structures and household goods
4. According to the professor, what was a problem with dirt DNA results from the Farm Under the Sand?
A. Human DNA was difficult to identify because it had broken down over time.
B. Cattle DNA had moved deeper into the soil over time.
C. Cattle DNA that was recovered from the soil was contaminated by the DNA of sheep and goats.
D. Researchers had probably introduced fresh human DNA into the soil by accident.
5. Why does the professor mention a change in the design of houses?
A. To support a theory about why Vikings did not remain in Greenland
B. To emphasize how much of a farm was preserved because of permafrost
C. To suggest that soil erosion was a concern in Viking settlements
D. To explain problems related to traditional Viking building materials
6. What does the professor imply about the theory that Viking agricultural practices were inappropriate for Greenland’s environment?
A. It has been the main focus of research at the farm.
B. It is supported by bone records as well as dirt DNA research.
C. It is more likely to be true than a theory about climate change.
D. There is significant evidence against it.
