Answer:
u should know this, it is an opinion
 
        
                    
             
        
        
        
Velocity is how fast the river is moving, the Volume is how much is in the river!
        
             
        
        
        
Answer and Explanation
Due to technical problems, I was not able to fill the answer and explanations in the corresponding boxes. You will find them in the attached files.
 
        
             
        
        
        
The density of the clay plate is  1970 kg m⁻³
the problem we are dealing with is related to density, which is the mass of a unit volume of a material substance. The formula for calculating density is d = M/V, where d is density, M is mass, and V is volume. Since we are provided with the volume of the clay plate which is 30.0cubic centimeters and the mass of the plate which is 59.1grams
 so,V= 30 cm⁻³=3x 10-5 m and  M=  59.1grams= 0.0591 kg 
Therefore, the density of the plate is:  M/V
=>d = 1970 kg m⁻³
To know more about density refer to the link  brainly.com/question/15164682?referrer=searchResults.
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Agricultural chemicals is an example of a nonpit source of freshwater pollution