The Big Bang Theory

The Big Bang Theory Pop Quiz

What did Leonard use to preserve Penny's snowflake?
Choose the right answer:
Option A 1% dry ice 3% carbon monoxide 97% polytractic acid
Option B 99% solution of potassium sulfate
Option C 1% solution of polyvinal acidal resin
Option D He didn't say on screen.
 robothor1111 posted over a year ago
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