Answer:
Definition: U-shaped valleys form through glacial erosion. Glaciation develops in established v-shaped river valleys where the ice erodes the surrounding rocks to create a “U” shaped valley with a flat bottom and steep sides. Glacier movement is driven by gravity
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.
It looks like a soup ladel. The reason why it is called big is to distinguish it from the more small one. Its real name is ursa major.
It should be noted that Condition of the air such as temperature, cloud cover, wind and rain describe weather.
<h3>What is weather?</h3>
weather can be regarded as the the state of the atmosphere in a specific area, and this can be expressed with respect to heat, cloudiness as well as dryness and sunshine and rain at that time.
Learn more about weather at:
brainly.com/question/11857753
<u>Answer:</u>
The foreign policy of the United States should in the next ten years focus on the protection of the United states, it's citizens and it's allies from it's opposition. It should make sure of having continuous access to the international resources and markets for the further production and distribution of it's goods and services.
The foreign policy in the future should focus on the preservation of the power of the United States in the world and also for protection of the human rights and democracy and world peace.
