Answer:
The first layers of earth are very loose, unconsolidated layers called soil, which is pretty easy to dig into, but as we go deeper we reach the bedrock, which is the hardest part of the soil profile, which is made of hard rocks and matter.This makes it harder to dig more and more deeper.
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Answer:
If you don't continue an accurate antibiotic treatment, compliting it course, you encourage development of antibiotic resistance in bacteria, which can become difficult to treat with the same antibiotic or cause a bacterial regain and cause a severe infection. It can also become life -threatening in the future leading to difficult results in treatment with the same antibiotic or others.
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Few factors....
greater concentration differences between regions. I. e. steeper concentration gradient.
lighter molecular mass of substances.
        
             
        
        
        
Explanation:
A true friend would care about you like nobody else would they would always tell the truth to you or someone they would never lie to you  the way they are acting can help identify too
 
        
                    
             
        
        
        
Answer:
Because of the fact that Snails cannot survive in nasty water.
Explanation: