Answer is b. Burning fossil fuels causes a decrease in the pH of ocean water making it more acidic.
Burning of fossil fuels release carbon dioxide and other harmful gases in the atmosphere. Carbon dioxide gets dissolves in the ocean to form carbonic acid.  Due to formation carbonic acid, the pH of ocean water changes slightly. The average pH of ocean water was 8.2 slightly basic. Now it 8.1, it means there is 25 % increase in acidity of ocean water.  
 
        
                    
             
        
        
        
Answer:
Merlin's paper discusses two types of data: artifactual and paleoethnobotanical. Give specific examples of each and describe the sources of data and the ...
 
        
             
        
        
        
23 and  for the female and for the male there are 46 
        
             
        
        
        
A force of 28 N was applied to a 4 kg object, what acceleration was produced?
        
                    
             
        
        
        
Answer:
A- A one-tailed test
Explanation:
A one-tailed test is a statistical test that shows the sample mean would either be higher or lower than the population mean. It creates a relationship in a single direction such that the critical area is either greater or less than a stated value but not both. In a one-tailed test, null and alternative hypothesis have to be stated as if the tested sample is in a one-sided critical area, the alternative hypothesis is accepted. 
In this scenario, the researchers' hypothesis take either   > 6 or < 6 as the stated value. The result can only go in either of both direction, not both.