The correct option is (c).
Explanation
Forest ecosystems are characterized by dense vegetation that significantly influences the local microclimate, soil composition, and acoustic environment. These ecosystems maintain distinct physical conditions compared to open terrain.
Statement-wise Analysis:
- Statement 1 is Correct: Forests act as natural acoustic barriers. The trunks, branches, leaves, and shrubs absorb, deflect, and refract sound waves, significantly reducing noise levels. This attenuation of sound contributes to the relative quietness of the forest environment.
- Statement 2 is Incorrect: Vegetation regulates temperature through transpiration and shading, which generally lowers the ambient temperature. Forests typically reduce wind speed and moderate extreme weather conditions rather than generating hot winds. Hot winds are characteristic of arid or open regions lacking significant vegetation cover.
- Statement 3 is Correct: The forest floor is typically covered with a layer of organic debris, including fallen leaves, twigs, bark, and other plant material. This layer, known as litter, undergoes decomposition by microorganisms and detritivores, eventually forming humus and recycling nutrients back into the soil.
Key Takeaway:
Forests function as natural sound absorbers and temperature moderators, while the forest floor serves as a critical site for the decomposition of organic matter and nutrient cycling.