Answer:
the rise of sea levels in coastal areas
Explanation:
The word harbingers as it is used in this excerpt is a person or thing that announces or signals the approach of another.
Respectful? i would assume so ??
Answer:
Minerals are classified by key chemical constituents; the two dominant systems are the Dana classification and the Strunz classification. Silicate minerals comprise approximately 90% of the Earth's crust.
Explanation:
Hope this helps! Brainliest please?