Final Answer:
A biome that is moderately rainy and cold is most likely a temperate deciduous forest.
Step-by-step explanation:
Chaparral: Characterized by hot, dry summers and mild, wet winters. It is not typically described as "moderately rainy and cold."
Deciduous Forest: Found in regions with moderate rainfall and distinct seasons, including cold winters. Trees in deciduous forests shed their leaves in the fall.
Tropical Grassland: Often referred to as savanna, characterized by warm temperatures and distinct wet and dry seasons. It is not typically cold.
Tundra: Characterized by cold temperatures, short growing seasons, and low precipitation. It is not usually described as "moderately rainy."
Considering the description of being "moderately rainy and cold," the temperate deciduous forest biome is the most suitable match.