Identify three major biomes found on Earth.

The three major biomes highlighted are tropical rainforests, deserts, and tundras, each representing distinct ecological zones characterized by specific climate conditions, flora, and fauna.

Tropical rainforests are known for their high biodiversity and dense vegetation, thriving in warm, humid conditions with substantial rainfall throughout the year. This biome plays a crucial role in global carbon cycling and is home to countless species, making it a vital area for biodiversity.

Deserts are defined by their extremely low precipitation, often experiencing harsh conditions. They can vary significantly in temperature but are united by their aridity. Despite this, deserts are uniquely adapted ecosystems with specialized plant and animal life that can survive in such environments.

Tundras are characterized by cold climates, minimal precipitation, and a short growing season. These biomes are usually found in polar regions and at high altitudes. The vegetation is limited to grasses, mosses, and some hardy shrubs, with a significant portion of the ground often permanently frozen (permafrost).

In contrast, while the other options contain some valid biomes, they do not encompass the same distinct categorization of the three major biomes as effectively as the correct choice.