The Figure Below Shows the Predicted Distribution of Biomes Following

question 57

Multiple Choice

The figure below shows the predicted distribution of biomes following a 4ᵒ C increase in average global temperature.
What biome in North America, in addition to deserts, becomes more common and how can the change be explained?

• A) Boreal forests expand because warmer temperatures reduce the extent of snow coverage and allow conifers to begin spring growth earlier.
• B) Tundra expands because melted permafrost provides new habitat for cold-adapted grasses and herbs.
• C) Topical forests expand because warmer temperatures expand tropical habitats, increase evaporation from the ocean surface, and provide the necessary rainfall.
• D) Grasslands expand because warmer temperatures decrease average global rainfall, converting forest biomes to grasslands.

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Definitions:

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A small sac-like cavity, especially one of two vestibular sacs within the ear that contributes to the sense of balance.

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Chemical substances in the brain that act as natural painkillers and mood elevators, often released during exercise, excitement, pain, and when eating spicy food.

Gayatri Mantra

A highly revered and powerful mantra from Hinduism, chanted for enlightenment and the purification of the mind.

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Followers of Islam, a monotheistic Abrahamic religion based on the Quran.