Which of the following is a biome?

• A. River
• B. City Park
• C. Farm Field
• D. Taiga

Answer: (D)

Biomes are large geographic regions defined by their climate and the typical communities of plants and animals that live there across wide areas. The taiga fits this idea because it’s a vast, northern forest biome characterized by cold winters, relatively low precipitation, and dominance of coniferous trees with wildlife adapted to long, harsh seasons. The other options describe specific places or landscapes rather than broad, region-wide biological communities: a river is a body of water that can exist in many biomes; a city park and a farm field are human-managed spaces that can be found within various biomes but are not themselves large-scale biomes. So the taiga is the correct choice because it represents a distinct biome.