Add punctuation: Fresh snow is an excellent insulator but compaction and ice crusts caused by thawing and freezing increases heat conduction up to a hundredfold
A: Fresh snow is an excellent insulator but compaction and ice crusts caused by thawing and freezing increases heat conduction up to a hundredfold.

Add punctuation: All you have to do is say the word and youll have a guest author account
A: All you have to do is say the word and you’ll have a guest author account.

Add punctuation: With unbelievable cynicism Zakovsky told about the vile mechanism for the crafty creation of fabricated antiSoviet plotsnote
A:
With unbelievable cynicism, Zakovsky told about the vile "mechanism" for the crafty creation of fabricated "anti-Soviet plots."[note]