question:
During the Silurian, Gondwana continued a slow southward drift to high southern latitudes, but there is evidence that the Silurian ice caps were less extensive than those of the late Ordovician glaciation.
Compared to the Ordovician glaciation, how big were the ice caps on Gondwana during the Silurian?

answer: yes

question:
On September 23, 1908, the Cubs and New York Giants were involved in a tight pennant race.
Who were the Cubs involved with for a tight pennant race on September 23, 1908?

answer: yes

question:
It is not until the early Ordovician that the first annelid jaws are found, thus the crown-group cannot have appeared before this date and probably appeared somewhat later.
Where was Myoscolex found?

answer: no

question:
Gaddafi become openly hostile to Egypt's leader, calling for Sadat's overthrow, and when Sudanese President Gaafar Nimeiry took Sadat's side, Gaddafi by 1975 sponsored the Sudan People's Liberation Army to overthrow Nimeiry.
Who was the president of Sudan in 1975?

answer:
yes