Answer:
Erosion can cause water in the rivers to become heavily polluted. The water might carry pesticides, heavy metal ions and other toxic wastes. When this water will be used for irrigation purposes, the growth of plants will be heavily affected by them. 
When humans use water this contaminated water from the rivers, it will led to many diseases in humans. Also, the wild- life animals which depend on this river might take in toxic compounds due to which they might die. 
 
        
             
        
        
        
Explanation:
as the ocean plate is pushed under the overriding continental plate the ocean sedimentary layers are heated compressed and melted the pressure of the converging plates that create the subduction zone forces the Continental play upwards creating mountain ranges such as Andes 
 
        
             
        
        
        
T<span>he Great Migration (in East Africa, mainly Kenya and Tanzania) is principally herds of wildebeest and zebra following their food and water supply.</span>
        
                    
             
        
        
        
Specialization ensures that goods and services are produced by low-cost producers.
<h3>What is specialization?</h3>
It should be noted that specialization simply means the concentration of the production in a particular field.
In this case, specialization ensures that goods and services are produced by low-cost producers.
Learn more about specialization on:
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Answer:
C. The formation name is symbolized by capital letters
Explanation:
The capital letter represents the the age of the geological unit and not the formation name. The history of the Earth has been divided by Geologists into Eons (the largest division), Eras, Periods, and Epochs , mostly based on the fossils found in rocks.