Which of the following best describes why estuaries are important resources? A. They are the world's richest sources of precious metals. B. They are among the most productive types of ecosystems. C. They prevent weathering of rock from slopes and cliffs. D. They help stabilize the global climate.

B. They are among the most productive types of ecosystems.

Explanation:

The estuaries provide migratory birds a place to rest. for example.

im not intirely sure but i think the anwser is d relative humidity

i wish i could with all of them i can barley see the first one so here's the answer to the first one b