The biome with the fewest seasonal changes is the

A. temperate deciduous forest.
B. grassland.
C. tropical rain forest.
D. coniferous (boreal) forest.

In which of these is it hot and humid all year?

To determine which biome has the fewest seasonal changes, we need to understand the characteristic patterns of each biome. Here's an explanation of each option:

A. Temperate deciduous forest: This biome experiences distinct changes in seasons. It has a warm summer, with temperatures ranging from moderate to hot, and a cool to cold winter, with temperatures dropping below freezing. The foliage of deciduous trees changes color and falls off during the winter months.

B. Grassland: Grasslands typically have significant seasonal variations. They experience hot summers and cold winters, with temperatures ranging from mild to extreme. However, unlike other biomes, grasslands lack a dense tree cover, so the changes in plant life are not as visually apparent as in other biomes.

C. Tropical rainforest: This biome is characterized by high temperatures and humidity throughout the year. It has a relatively constant climate, with little variation in temperature or precipitation. Tropical rainforests do not experience distinct seasons, so the changes are minimal.

D. Coniferous (boreal) forest: Coniferous forests, also known as boreal forests or taiga, are located in high-latitude regions. They experience long, cold winters and short, cool summers. The presence of evergreen coniferous trees allows these forests to maintain a consistent appearance throughout most of the year.

From the options provided, the biome with the fewest seasonal changes is C. tropical rainforest. It has a relatively constant climate, with no distinct seasons. The high temperature and humidity persist throughout the year, creating a stable environment for the diverse flora and fauna found in tropical rainforests.

The answer is C. tropical rain forest.