Question

choose one sentence from the excerpt that confirms why studying \sky - high microbes\ is important? the journey takes three to five days. so far, about one - fifth of the living survivors that griffin and others have identified blowing in the wind can cause disease. one type infects ocean corals. another can sicken sycamore trees.

Explanation:

The question asks for a sentence justifying the importance of studying "sky-high microbes". The relevant sentence is the one that states these microbes can cause harm, as this creates a need for study.

Answer:

So far, about one-fifth of the living survivors that Griffin and others have identified blowing in the wind can cause disease.