A layer of rock might have eroded is an unconformity in a sequence of rock layers that reveal about geologic history. The correct option among all the options that are given in the question is the second option or option "B". I hope that this is the answer that will come to your help.
Answer:
1.422
N/m²
Explanation:
pressure (P) = ρ g h
where ρ= density of continental crust
g= acceleration due to gravity
h is the depth given
density of continental crust is equal to 2.9 g/cm³
= 
g=9.81 m/s²
height = 50,000 m
now,
pressure (P) = ρ g h
pressure (P) =
=1.422
N/m²
I think the correct answer from the choices listed above is the second option. Global information systems (GIS) can be used to create emergency plans in the event of natural disasters.
Hope this answers the question.
Have a nice day.
Answer:
The answer is 3. symbols and distance.
Explanation:
On a map, the legend (key) explains the symbols used and the scale shows the distances represented in the map. So the answer is 3.