question: OPTIONS:
- yes
- no
Ordinary soda-lime glass appears colorless to the naked eye when it is thin, although iron(II) oxide (FeO) impurities of up to 0.1 wt% produce a green tint, which can be viewed in thick pieces or with the aid of scientific instruments.
What can prevent a green color in glass?

answer: no

question: OPTIONS:
- yes
- no
The Quine-Duhem thesis argues that it's impossible to test a single hypothesis on its own, since each one comes as part of an environment of theories.
What thesis says a scientific hypothesis is not testable in isolation from its system of theories?

answer: yes

question: OPTIONS:
- yes
- no
After Alexander the Great's ventures in the Persian Empire, Hellenistic kingdoms were established throughout south-west Asia (Seleucid Empire, Kingdom of Pergamon), north-east Africa (Ptolemaic Kingdom) and South Asia (Greco-Bactrian Kingdom, Indo-Greek Kingdom).
Where was the Ptolemaic Kingdom located?

answer: yes

question: OPTIONS:
- yes
- no
Eisenhower returned to the U.S. in December 1939 and was assigned as a battalion commander and regimental executive officer of the 15th Infantry at Fort Lewis, Washington.
What unit did Eisenhower serve with upon his return to the United States?

answer:
yes