Which lines in the description of the knight from the "general prologue" of the canterbury tales tells us that he had been part of the crusades, military expeditions in which christians sought to win the holy land?
"in latvia raided he, and russia, no christened man so oft of his degree. in far granada at the siege was and he'd fought for our faith at tramissene three times in lists, and each time slain his foe. this self-same worthy knight had been also at one time with the lord of palatye… and always won he sovereign fame for prize. though so illustrious, he was very wise."

And he'd fought for our faith at Tramissene

Explanation:

The below given lines tells us that he had been part of the Crusades, military expeditions in which Christians sought to win the Holy Land

And he'd fought for our faith at Tramissene

The above line only tells that he was part of military expedition at Tlemcen, in western Algeria where he was fighting against the evils to save the holy land with the purpose of preserving the beliefs of people on Christianity, it teaching and goodness.

In this fight, the Castilian forces undertook naval expedition against the Marinid fleet to keep their ships enganged but could not succeed .

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%