Answer:
Rocks deteriorating the ocean floor
Explanation:
As rocks scrape past the ocean floor they chip away at it smoothing it (erosion) out but due to continental drift and magma rising and cooling it causes the new igneous rock forms on the ocean floor making it rough and rugged. 
When thinking about this think about a pebble on the beach, what it is? 
rounded due to erosion just as scientists thought the ocean floor would be. 
 
        
             
        
        
        
For the answer to the question above, I think <u><em>"the nurse should </em></u><span><u><em>apply a pressure against her sacrum</em></u>". 
</span><span>This will help alleviate the discomfort of the woman who labors because of the position of the baby.
</span><span>I hope this helps 
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I believe the answer is true. Humans have a digestive track, which removes unwanted matter from the body.
        
                    
             
        
        
        
When a Ribosome in the cytoplasm attaches to a mRNA molecule (I’m in 9th grade and we did this last semester so I’m pretty sure it’s right) :)