B.farming that's really all they do there is farm
Answer:
Approximately 113 kilometers.
Explanation:
The Madison Aquifer is an extremely sensitive environment and vulnerable to contamination from trucks that pass through its roads and overturn, spilling products that can impact this region in a very deep way. This vulnerability occurs because of the rocky outcrop areas and the roads that it has, which present several shortcuts to the trucks. It is estimated that the total length of roads crossing the Madisan is approximately 113 kilometers.
The ocean floor preserve evidence of past magnetic reversals because c) the ocean floor is uniformly old, preserving the earth's 4.6 billion history.
<h3 /><h3>What subjects need to be studied to study the earth's magnetism?</h3>
Paleomagnetism is the study of naturally occurring residual magnetism in rocks with the goal of understanding the strength and direction of the Earth's magnetic field in the geologic past and understanding the motion history of plates. Paleomagnetic fields have played a large role in confirming undersea propagation, through the discovery and understanding of seafloor anomalies. In the 1960s, geophysicists studied the magnetic properties of the ocean floor and began to discover some amazing properties.
The seabed has a system of linear magnetic anomalies in which a "band" has all its magnetic minerals oriented in the same way as the current magnetic field and the magnetic minerals in the bands alternating is oriented in the opposite direction. These bands are oriented parallel to the mid-ocean ridge system; where the ridges compensate for the transform error, the anomalies are also compensated. Symmetrical anomalies are found on either side of the ridge, and similar symmetry is found in ridges around the world.
Learn more about Paleomagnetism brainly.com/question/12990353
#SPJ4
