The school 'makes every effort' [=the school does all that it can] 'to help' new students become adjusted to college life.
His novel's surprise ending is not really convincing, but we'll give him 'an A for effort'.
He wanted to contribute in some way to the 'war effort'. [=to the effort to win the war]
(..) Let go of the thing Impossible, My Lord! Was that all? More you have not 'on that? If you want to defeat me, you give more effort! Much more trouble! You did what any successful in reaching] e! You besiegtest the enchanted swords of Demaclus! The other tried already? Oh Yes. How many? (..)2011 The Dragon Warrior