Water first-rate has significantly laid low with the presence of acid and base within the water. So answer is lake a: ph = 6.6; lake b: ph = 6.8.
 The water isn't always precise for fitness whilst its exceptionally acidic or exceptionally basic. If the pH of water is almost impartial, this water is nice for consuming purpose. In the choice 3, each lake A and lake B has pH almost impartial so this water reasons no awful impact at the fitness of the human body. Highly acid water has low water first-rate because of the presence of metals which adversely have an effect on our body.
<h3>What is pH of lake water ?</h3>
The pH degree of the water in rivers, lakes, and wetlands is critical to plant and animal life is 7.
<h3 />
Hence explained.
To learn more about the acids refer link :
brainly.com/question/25148363
 
        
                    
             
        
        
        
Understanding the ages of related fossil species aids scientists in reconstructing an organism's evolutionary history. Relative dating arranges geologic events in chronological order without requiring each event to be assigned a specific numerical age.
        
             
        
        
        
Answer:
Nothing
Explanation:
No options found and you asked us to pick from the following
 
        
             
        
        
        
Answer:the resistance that one surface or object encounters when moving over another.
Explanation:it is easy!
 
        
             
        
        
        
Myofibrils are the building blocks or contractile unit of each muscle fiber. The tiniest functional unit of skeletal muscle, the sarcomere, is found in the myofibrils and is made up of protein filaments: actin (thin) and myosin (thick).