Answer:
Explanation:
Discontinuities are changes that seismic waves present in their trajectory and speed because the properties of the medium they pass through become different. That is what has allowed geologists and geophysicists to know the internal structure of the planet and deduce its composition.
Specifically, the discontinuity represented by the end of the crust and the passage to the upper mantle is the Mohorovicic discontinuity, or as it is briefly called the Moho.
The depth at which it is found varies greatly because the thickness of the crust is very different depending on whether it is oceanic crust (about 7 km) or continental crust (up to 100 km under the great mountain ranges).
To know the source of the chemicals, the gradient can be used in the hydraulic head among contaminated wells to estimate the groundwater flow paths.
<h3>What is a hydraulic head?</h3>
A hydraulic head refers to a selected size of liquid pressure above a vertical datum. It is commonly measured as a liquid floor elevation, expressed in devices of length, at the entrance of a piezometer.
Hence, To know the source of the chemicals, the gradient can be used in the hydraulic head among contaminated wells to estimate the groundwater flow paths.
Learn more about hydraulic head:
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In Europe, many natural resources have been conserved because they have been overused. The correct option among all the options that are given in the question is the last option or option "D". I hope that this is the answer you were looking for and it has come to your help.
Answer:
that would be global if I cor
