Does "High levels of precipitation cause the glaciers to descend to permafrost levels in some areas whereas in other, more arid regions, glaciers remain above about the 3,500 m (11,483 ft) level." contain the correct answer to "What cause the glaciers to descend to permafrost levels in some areas?"
OPTIONS:
- yes
- no

A: yes

Does "Britain's remaining colonies in Africa, except for self-governing Southern Rhodesia, were all granted independence by 1968." contain the correct answer to "When was the Unilateral Declaration of Independence of Rhodesia?"
OPTIONS:
- yes
- no

A: no

Does "John took a close interest in Wales and knew the country well, visiting every year between 1204 and 1211 and marrying his illegitimate daughter, Joan, to the Welsh prince Llywelyn the Great." contain the correct answer to "Who did John marry Joan to?"
OPTIONS:
- yes
- no

A:
yes