None of the bove. Soil erosion occurs due to deforestation, water, wind and tillage of the land farms. It is the removal of the top layer of the soil, and leads to poorer quality of soil, called a soil disruption. This can be avoided by using proper farming techniques and afforestation. 
        
             
        
        
        
Seismic waves are waves of energy that travel through the Earth's layers, and are a result of earthquakes, volcanic eruptions
        
                    
             
        
        
        
Acidosis, the pH of a human should be 7.4 and never lower than 7.35
        
             
        
        
        
Answer:
False
Explanation:
In the troposphere, near the Earth's surface, human activities lead to ozone concentrations several times higher than the natural background level. Too much of this ground-level ozone is 'bad' as it is harmful to breathe and also damages vegetation.
The stratosphere or “good” ozone layer extends upward from about 6 to 30 miles and protects life on Earth from the sun's harmful ultraviolet (UV) rays.
 
        
             
        
        
        
Answer:
im pretty sure the answer is Eukarya.