Question

In which biome would you expect to rake leaves?

Answer 1

Forests. Trees would be required to have leaves to drop.

Explanation:

A temperate climate zone might also be indicated, but even tropical climate trees regularly drop their leaves. They just don't turn into bright colors first.

Biomes are defined as "the world's major communities, classified according to the predominant vegetation and characterized by adaptations of organisms to that particular environment" (Campbell).
http://www.ucmp.berkeley.edu/glossary/gloss5/biome/