QUES: Q: Charged ions can be used to produce what in glass?
A: Color in glass may be obtained by addition of electrically charged ions (or color centers) that are homogeneously distributed, and by precipitation of finely dispersed particles (such as in photochromic glasses).
Does the answer answer the question? OPTIONS:
- yes
- no

ANS: yes

QUES: Q: What is the purpose of NCAZ?
A: Berlin starts National Cyber Defense Initiative: On June 16, 2011, the German Minister for Home Affairs, officially opened the new German NCAZ (National Center for Cyber Defense)
Does the answer answer the question? OPTIONS:
- yes
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ANS: no

QUES: Q: When was MPEG-2 Audio finally published?
A: MP3 was designed by the Moving Picture Experts Group (MPEG) as part of its MPEG-1 standard and later extended in the MPEG-2 standard.
Does the answer answer the question? OPTIONS:
- yes
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ANS: no

QUES: Q: Who led led the Serbian Army at the Battle of Kosovo?
A: Yet Serbian dominance was short-lived; the Serbian army led by the Lazar Hrebljevanovic was defeated by the Ottomans at the Battle of Kosovo in 1389, where most of the Serbian nobility was killed and the south of the country came under Ottoman occupation, as much of southern Bulgaria had become Ottoman territory in 1371.
Does the answer answer the question? OPTIONS:
- yes
- no

ANS:
yes