Answer:
geomagnetic field.
Explanation:
The earth magnetic field can be likened to a bar magnet with a North and South pole. It originates from the movement of molten iron and nickel in the outer core.
At every point in time, the magnetic field orientation can change. We must note that the magnetic north lies close to that of geographic north axis of the earth.
Around the mid-oceanic ridges, new materials are brought to the surface. These new materials can contain magnetic minerals such as haematite which are capable of being magnetized as a result of the prevalent magnetic field of the earth. As different materials are brought up, the magnetic minerals preserves the details of the magnetic field at that point in time. Using this information can know the orientation of the magnetic field at any point in time if the magnetic history chart of the earth is constructed. Oceanic ridges becomes older as they move away from the divergent margins.
Hello @D1fficult,
How are you doing? As of your question, "<span>What is the main cause of the differences in the physical characteristics of the Middle East and South America?"
Well, some differences that you would see is that, first of all, the Middle East is desert. The climate is dry, almost no rain, sandstorms, and heat. In the night, its cold, more water supply, however it still is dry. Their is mountains there, and almost no animals.
South America, you may know as the Amazon Forest. The Amazon Forest is everything but the Middle East. The climate is always wet, and its always raining. Lots of Vegetation, and animal variety.
I hope that you are able to see the difference, and I hope this helped you, if you need any more help, contact me!
Thank you,
Darian D.</span>
Between 50-80 years or even more than 80 sometimes
Answer:
all of the above.
Explanation:
in ww1 president Wilson kept the U.S out of the war but after intercepting a letter from Germany to Mexico saying to declare war on the U.S that they would help them regain the border states Texas, Arizona, New Mexico etc.
C. The aral sea is known to be so severely damaged due to management that only a little part of it is saved and can be seen nowadays. However, Kazakhstan is doing its best to save the Northern part of the sea. Therefore, the water level of the lake had risen by 12 meters, and fishes are found swimming once again in the sea.
