Permafrost is an important factor in which terrestrial biome?

• A. Tropical rainforest
• B. Temperate grassland
• C. Desert
• D. Tundra

Answer: (D)

Verified step by step guidance

1. Understand the concept of permafrost: Permafrost refers to soil that remains frozen for two or more consecutive years. It is a defining characteristic of certain cold environments.
2. Identify the biome associated with permafrost: Permafrost is most commonly found in regions with extremely cold temperatures and short growing seasons, which are characteristic of the tundra biome.
3. Eliminate incorrect options: Tropical rainforests, temperate grasslands, and deserts do not have the conditions necessary for permafrost formation. These biomes are either too warm or lack the consistent freezing temperatures required.
4. Focus on the tundra biome: The tundra biome is located in Arctic and sub-Arctic regions. It is characterized by low temperatures, limited vegetation, and the presence of permafrost.
5. Conclude that permafrost is an important factor in the tundra biome, as it influences soil structure, vegetation growth, and ecosystem dynamics in this cold environment.