The BEST hypothesis is that the ashes from the fire contain new nutrients that enrich the soil. Hence the correct option is a.
The most plausible explanation for the phenomenon of a forest regrowing and maturing faster after a fire lies in the hypothesis that the ashes generated by the fire contain new nutrients that significantly enrich the soil. Following a wildfire, the ashes contribute essential elements to the soil, fostering a nutrient-rich environment that accelerates the regrowth and maturation of plants and trees.
This enhanced soil fertility provides a favorable condition for the germination of seeds and the growth of new vegetation, contributing to the rapid recovery of the forest ecosystem. The nutrient infusion from the ashes acts as a catalyst, promoting the resilience and vitality of the post-fire ecosystem, making this hypothesis the most compelling explanation for the observed phenomenon. Hence the correct option is a.
Complete ques:
A forest frequently regrows and matures much faster after fire than it did originally. What is the BEST hypothesis to explain this phenomenon?
OA The ashes from the fire contain new nutrients that enrich the soil.
OB The new plants and trees require less water than the ones they replace.
ОC The destroyed forest ecosystem is more resistant to climate change.
OD The fire did not destroy all the plant seeds and roots left in the soil.