The question is incomplete and the complete question is as following:
Which topic sentence is best supported by the evidence? At a low intensity, flames can clean up debris and underbrush on the forest floor, add nutrients to the soil, and open up space to let sunlight through to the ground. (1 point)
A. Wildfires also help keep ecosystems healthy.
B. Climate change has left some ecosystems more susceptible to flames, especially in the southwest United States.
C. Wind, high temperatures, and little rainfall can all leave trees, shrubs, fallen leaves, and limbs dried out and primed to fuel a fire.
D Wildfires that burn near communities can become dangerous and even deadly if they grow out of control.
Answer:
A.
Step-by-step explanation:
Wildfires are defined as uncontrolled fire in forest or lands.
Wildfires at low intesity helps to keep ecosystems healthy as at low intensity flames disease causing microorganisms and insects that harm trees can be killed.
As a low intensity flames clean up debris and underbrush on the forest floor and make way for new herbs, shrubs and grasses and provide new habutat for birds and animals.
Hence, the correct answer is "A".