You are presented with the quiz "What is most likely to result from warm air advancing on cold air?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "awarm front causes cloudy and rainy weather" and "if warm air is advancing on cold air, the front is designated a warm front". 

So, what's the best answer to the question?


 

     cloudy and rainy weather      