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.
Answer:
Environmental pollution is the introduction of harmful materials caused by pollutants into the environment. Pollutants are the various impurities that have found their way into the environment due to both human activity and natural causes, thus leading to pollution. These chemical compounds are harmful to both life and the environment.
Explanation:
hope i helped
<span>The birthrate and the death rate were about equal.</span>
The sun's location in the milky way galaxy is in the galactic disk.
Answer:
Less efficient agriculture
Slower / less industry production
Potential for conflict
