For continental U.S. the answer is never. Since the earth's rotation axis is tilted 23.5 degrees with respect to its orbital motion around the su, one would have to be less than 23.5 degrees above or below the equator to have the sun pass direclty overhead
The Presidential Election map showed that The deep political divisions in the United States created a fractured electorate.
<h3 /><h3>What was shown by the 1860 election map?</h3>
The Democrats supported slavery in 1860 which was why they won the votes in the South. This was because the South supported slavery as their main economic industries such as cash crops, relied on enslaved labor.
The Republicans led by Abraham Lincoln were against slavery and were able to win in the North. This was because the North were against slavery for a mix of reasons with one of them being that they didn't like how cheap labor was in the South.
This showed that the political divisions in the U.S. led to a fractured electorate.
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Answer:
Green building as explained below
Explanation:
It also referred to as a Sustainable building. It refers to the structural application of environmentally responsible and resource-efficient through a building's life cycle. Various new technologies are constantly being developed to complement current practices to develop a mush greener and eco-friendly use of technology that is build on human health and natural technology. The green building concept has originated in us due to the growing demands of energy. There are several green models and the main cause of them being social, economic and ecological principles. The state of Arizona is has developed technology that creates energy efficiency in building windows and door and with the help of grade insulating mechanism that keeps check of the heating system. The main goal is to create a renewable resource like green rods, and rain gardens which are both water and air efficient help to minimize toxic substance and indoor pollutants.
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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.
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