A) Digger
Explanation:
What is the digger in volleyball called?
The job of a volleyball digger is to prevent the ball from hitting the floor after being spiked by the opposing team. To dig, the volleyball players must anticipate the spike and be prepared to quickly dive in any direction.
 
        
             
        
        
        
Answer:
Retrograde amnesia.
Explanation:
Retrograde amnesia may be defined as the medical condition in which the individual has memory loss before the onset of disease or injury. This affects the individual negatively affected by episodes.
Ryan after his head injury lost all the memory that has occurred before the accident. The Ryan is suffering from the retrograde amnesia as he has lost only the part of memory before the accident. The individual is able to form new social relationship.
Thus, the answer is retrograde amnesia.
 
        
             
        
        
        
For permanent weight loss a person should maintain a balanced diet food and do regular excercise.
        
                    
             
        
        
        
Answer:
Replication
Explanation:
Replicating a study means that other researchers are able to replicate the procedure of a published study and find similar or different results. Replication is very important in science. It can act as a filter for the community itself, as a researcher's field colleagues can ascertain whether the effect reported in a study is reproducible, generalizable, or limited. Based on this, we can conclude that if Dr. Ambra is skeptical about the results of a sleep deprivation survey, the best she can do is to replicate the research and prove whether the results are reliable or not.
 
        
             
        
        
        
The answer is B, poverty :)