Answer:
c) known to have experienced numerous polarity reversals, as seen by the remnant magnetization of iron-rich minerals in rocks.
Explanation:
Paleomagnetism is the study of the Earth's magnetic fields in sediment (rocks or other archaeological material). This can be used to estimate the age of sediment (or in this case, the seafloor) because it is known that the magnetic field of Earth experienced numerous polarity reversals. This allows is to employ such sequences as a chronologic tool. Paleomagnetism has also been a significant tool in the subjects of continental drift and plate tectonics.
They need food from the people who produce it and the people who produce food need money from the buyers
Answer: 1. It must be a full moon (for a lunar eclipse) or a new moon (for a solar eclipse). 2. The Moon must be at or near one of the two points in its orbit where it crosses the ecliptic plane (its nodes).
Explanation:
Violence broke out in northern Rakhine state on 25 August, when militants attacked government forces. In response, security forces supported by Buddhist militia launched a “clearance operation” that has killed at least 1,000 people and forced more than 300,000 to flee their homes. The UN’s top human rights official said on 11 September that the military’s response was “clearly disproportionate” to insurgent attacks and warned that Myanmar’s treatment of its Rohingya minority appears to be a “textbook example” of ethnic cleansing.
Meandering caused the two oxbow lakes to be formed.
Explanation:
There are multiple different types of lakes, and the type of a lake is determined by the manner in which it has been formed. One of the lake types is the oxbow lake. This type of lake form from the preexisting meanders of the rivers, and they are located right next to a river, usually being separated by the river by only few meters.
When a river is meandering, which happens in flat terrain where the river is slow, it gradually takes up a snaky shape. This type of shape of the river can only go a certain point, till about 90 degrees angle of curvature. Once this angle is reached, the water starts to erode the sediment as it finds it hard to curl. Over time, the sediment is totally eroded, and the river continues in a straight line, cutting off the water to meandering parts, and separating itself from them. This results in the formation of oxbow lake, which is a bow-like, shallow lake.
Other types of lakes are:
- tectonic
- volcanic
- organic
- glacial
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