QUESTION: Fix punctuation: It can be either hazardous or nonhazardous
ANS: It can be either hazardous or non-hazardous.
QUES: Although little is known of his life quite a lot is known of his physics and philosophy

correct the punctuation.

CORRECTED: Although little is known of his life, quite a lot is known of his physics and philosophy.
Question: Since Nakskov visited by many tourists you will also find many Bed and Breakfast Nakskov opportunities
--
Answer: Since Nakskov visited by many tourists, you will also find many Bed and Breakfast Nakskov opportunities.
LiteTableAL Stackable lightweight table

Can you repeat this sentence, but add in punctuation?
LiteTable-AL Stackable lightweight table.
input: Continue with this routine for a couple of weeks and then you should drink whenever you feel thirsty it may amount to more than you think
fixed: Continue with this routine for a couple of weeks and then you should drink whenever you feel thirsty - it may amount to more than you think.
Drops pointed needle size 4 mm or size needed to obtain 21 sts x 28 rows 10 x 10 cm

Can you repeat this sentence, but add in punctuation?
Drops pointed needle size 4 mm or size needed to obtain 21 sts x 28 rows = 10 x 10 cm.