Fri. Jan 10th, 2025

Climatic Change

  1. What is the most recent interglacial period?

    Options:
    1. Nebraskan interglacial period
    2. Yarmouth interglacial period
    3. Sangamon interglacial period
    4. Holocene interglacial period

    Option: D

  2. What is the name of the combined ice caps that moved as far south as the province of Nebraska?

    Options:
    1. Laurentide ice sheet
    2. Alaska ice sheet
    3. Western ice sheet
    4. Montana ice sheet

    Option: A

  3. Which valleys were completely covered by Laurentide ice sheet?

    Options:
    1. St. Lawrence Valley and central lowland
    2. Appalachian Valley and central lowland
    3. Rocky Mountain Valley and central lowland
    4. Colorado Valley and central lowland

    Option: A

  4. What legacy did the Pleistocene Ice Age and consequent glaciation leave behind?

    Options:
    1. Several lakes, mainly the Great Lakes
    2. Numerous terminal moraines
    3. Both a and b
    4. None of the above

    Option: C

  5. How many glacial and interglacial periods have been identified and named in Europe?

    Options:
    1. Two
    2. Three
    3. Four
    4. Five

    Option: C

  6. What is the name of the glacial period that started about 70,000 YBP?

    Options:
    1. Aftonian
    2. Illinoin
    3. Holocene
    4. Early Wisconsin

    Option: D

  7. When did the final retreat and withdrawal of recent ice sheets start in North America?

    Options:
    1. 18,000 YBP
    2. 30,000 YBP
    3. 10,000 YBP
    4. 12,000 YBP

    Option: A

  8. What is the name of the short period glacial phase that reappeared in Europe after the withdrawal of ice sheets from the USA?

    Options:
    1. Holocene
    2. Younger Dryas
    3. Sangamon
    4. Wisconcin

    Option: B

  9. When did the period of deglaciation, denoting rapid changes in climate and rise in temperature, occur?

    Options:
    1. 18,000 to 5,500 YBP
    2. 5,500 to 10,000 YBP
    3. 10,000 to 12,000 YBP
    4. 12,000 to 18,000 YBP

    Option: A

  10. What caused the lowering of sea level by at least 100 meters about 18,000 YBP?

    Options:
    1. Pleistocene Ice Age
    2. Glaciation
    3. Deglaciation
    4. Holocene

    Option: B

  11. When did the recovery of sea level to its present level occur?

    Options:
    1. 18,000 YBP
    2. 5,500 to 10,000 YBP
    3. 10,000 to 12,000 YBP
    4. 5,000 to 6,000 YBP

    Option: D

  12. What are some sources used to reconstruct yearly climatic fluctuations since 1st century ?

    Options:
    1. Geographical and biological sources
    2. Historical records
    3. Instrumental records
    4. All of the above

    Option: D

  13. What were the temperature and precipitation conditions of the European continent and Mediterranean regions like in the 1st century ?

    Options:
    1. Similar to present-day climatic conditions
    2. Warmer and drier than present-day climatic conditions
    3. Cooler and wetter than present-day climatic conditions
    4. None of the above

    Option: A

  14. When did Europe and North America experience a dry phase resulting in semi-drought conditions?

    Options:
    1. 1st century
    2. 4th century
    3. 5th century
    4. 9th century

    Option: C

  15. What happened to several lakes in the western USA during the increased aridity in the 5th century ?

    Options:
    1. They dried up
    2. They became more humid
    3. They froze over
    4. They became saltier

    Option: A

  16. When did the climate become warmer and drier in the northern hemisphere, resulting in the melting of valley glaciers in the Alps of Europe and opening of frozen passes?

    Options:
    1. 1st century
    2. 600-700
    3. 9th century
    4. 1250

    Option: D

  17. What is the period from 950 to 1250 called in the climatic history of the earth?

    Options:
    1. Phase of Little Climatic Optimum
    2. Phase of Extreme Climate Variability
    3. Phase of Drought and Aridity
    4. None of the above

    Option: A

  18. What happened to the climate of Greenland and Iceland during the Phase of Little Climatic Optimum?

    Options:
    1. It became colder and wetter
    2. It became warmer and drier
    3. It remained the same
    4. None of the above

    Option: B

  19. Why did the Vikings migrate from Europe to settle in Iceland in the 9th century ?

    Options:
    1. Because of favourable conditions characterized by warmer climate
    2. Because of favourable conditions characterized by colder climate
    3. Because of favourable conditions characterized by more rainfall
    4. None of the above

    Option: A

  20. What happened to the climate of Greenland and the physical connection of Greenland with Iceland and Europe from 1250 to 1450 ?

    Options:
    1. It became milder and more connected
    2. It became colder and more disconnected
    3. It remained the same
    4. None of the above

    Option: B