Which of the following statements is true?

a. all fires are bad for a forest environment.

b. earth's water supply does not need to be protected from pollution.

c. the extracting of underground resources always leads to a healthy environment.

d. soil can be considered a resource.

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

can i get the brainliest pls

explanation:

substitution is the answer in this case