Answer:
54
Explanation:
becuasse i need 50 points
 
        
             
        
        
        
Answer:
Use Fertilizers Wisely.
Apply Pesticides Wisely.
Use Landscaping Practices that Prevent Erosion.
Wash Your Vehicle Wisely.
Dispose of Pet Waste.
Use and Dispose of Household Chemicals Safely.
Evaluate Existing Roads
 
        
             
        
        
        
Answer: C. there is more silicon than calcium at the surface of the earth
Explanation: