A broad, marshy, triangular area of land formed by silt deposits at the mouth of a river.
I took notes about this a long time ago
<u><em>Answer:</em></u>
<u><em>The answer is true if not im sorry </em></u>
<u><em>(doubt it might though i suck at history)</em></u>
<u><em>Hope this helps:3</em></u>
Answer:
Well, the deepest hole humans have ever dug was about 7.5 miles deep, in Murmansk, Russia. We should care about what is beneath our feet because something terrible could be afoot. For example, there could be some kind of anomaly under a heavily populated city. This anomaly could range from anything such as volcanic activity to instability in the ground on which the city is built. We should care about what is in the earth to make sure human life is not somehow endangered by something under our feet. I hope this helps!
Explanation:
your answer would be D: crust and outer part of the mantel