QUESTION: Fix punctuation: All systems have pulsewidth modulated control valves on all evaporators
ANS: All systems have pulse-width modulated control valves on all evaporators.
QUES: As a result weatherforecasting models are of high quality and meteorology is a hard science as least as hard of a science as the subject matter allows Weather systems are subject to infinite sensitivity to initial conditions so it is physically impossible to make useful weather forecasts beyond a week or so

correct the punctuation.

CORRECTED: As a result weatherforecasting models are of high quality and meteorology is a hard science, as least as hard of a science as the subject matter allows. Weather systems are subject to infinite sensitivity to initial conditions so it is physically impossible to make useful weather forecasts beyond a week or so.
Question: Who will decide by the end of February for a trip in Sardinia also benefits from a 5percent discount for bookings 28022011How you can book your sailing yacht from Marina di Portisco on the famous Costa Smeralda great for holidayinSardiniencom
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Answer: Who will decide by the end of February for a trip in Sardinia, also benefits from a 5-percent discount (for bookings 28.02.2011)!How you can book your sailing yacht from Marina di Portisco on the famous Costa Smeralda, great for holiday-in-Sardinien.com!
Most dogs with this condition show no signs appearing to be in perfect health

Can you repeat this sentence, but add in punctuation?
Most dogs with this condition show no signs, appearing to be in perfect health.
input: 512 Observe the Sabbath day to keep it holy as Yahweh your God commanded you
fixed: 5:12 "Observe the Sabbath day, to keep it holy, as Yahweh your God commanded you.
This is the case both physically and spiritually

Can you repeat this sentence, but add in punctuation?
This is the case both physically and spiritually.