Which of these is the MOST LIKELY reason a slanted roof is important on a birdhouse? A) to make the walls fit tighter B) to hold it up in a tree
C) to let larger birds fit inside D) to make snow and rain fall off
The most likely reason is (D) to make snow and rain fall off. If the roof was not slanted leaves, branches and snow will collect and add their weight might eventually cause the roof to collapse.