The deposition of sediment where there is a steep drop-off into shallow, flat land can create an alluvial fan. An alluvial fan is a triangular-shaped deposit of sand, gravel, and small sediments.
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Answer:
USGS state has the most sinkholes place
Given Parameters;
Coordinates = (-8,6), (5,-7)
x₁ = -8 y₁ = 6
x₂ = 5 y₂ = -7
Unknown:
The midpoint of the line = ?
Solution:
The midpoint of any two points is given as;
x
, y
=
,
Input the parameters and solve;
x
, y
=
, 
=
, 
The midpoint between the two points are
, 
Question 2's answer would be
Black soil that contains a lot of water.
Question 3's answer i believe would be soil surveys
Hope this helped!