Answer:
1 By the use of conventional signs or landmarks 
2 By using compass or cardinal points
 
        
                    
             
        
        
        
Weathering:
<u>Definition</u><u>:</u> The process of wearing or being worn by long exposure to the atmosphere.
<u>Example</u><u>:</u> Plateaus can be formed by weathering
Erosion:
<u>Definition</u><u>:</u> the gradual destruction or diminution of something.
<u>Example</u><u>:</u> Landforms of coastal erosion include cliffs, wave-cut platforms, caves and arches.
Deposition:
<u>Definition</u><u>:</u> Deposition is the geological process in which sediments, soil and rocks are added to a landform or landmass. 
<u>Example</u><u>:</u> Beaches, deltas, glacial moraine, sand dunes, and salt domes.
 
        
             
        
        
        
This geological process is called Mantle drag .
What is Mantle drag?
According to the first driving mechanism, known as mantle drag, plate motion is the consequence of viscous drag brought on by the lateral motion of the tops of mantle convection cells in the asthenosphere on the base of the lithosphere . Convection cells would thus be mostly absent beneath continents, rising beneath oceanic ridges, and dropping beneath trenches. This idea states that the oceanic lithosphere would be in a state of tension at the ocean ridges and compression at the trenches.
Due to their connection to accretive and destructive plate boundaries, the horizontal widths of the convection cells causing mantle drag would be projected to be around half an ocean's breadth, or 3000 km.
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Antarctica is the furthermost south land on Earth
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Answer:
Vegetation cover.
Explanation:
Planting vegetation over the mined area is the best solution that provide the largest benefits to society and the environment with low cost as compared to other solutions for reclamation such as refilling the land with soil and filled water to make a lake. Vegetation over mined area clean the environment as well as provides timber in few years which is used for making different products. So vegetation is the best solution for reclamation of mined area.