Hello There!
As well as the obvious negatives of volcanic eruptions, there are benefits too.
Volcanic eruptions can make the land very fertile.
Also, the lava contains many good minerals.
This makes it an ideal space for farming.
Hope This Helps You!
Good Luck :) 
- Hannah ❤
        
             
        
        
        
Research has demonstrated that neural stem cells have an impaired ability to differentiate into functional neurons when subjected to ethanol. They found out that treating cultured neural system impairs their ability to differentiate in functioning neurons. With this impairment it seems to be united with aberrant, dense methylation and loci which are active in normal tissue.
        
             
        
        
        
Hi there! 
By both unity and diversity in life, it means that animals and plants (and ecosystems) can be very different from each other but they can also have very similar characteristics. They can work together in harmony but become predator and prey at the same time. 
Hope this helps!
        
                    
             
        
        
        
Answer:
Yes
Explanation:
For example, we are unable to see the oxygen we breathe and depend on, but through observation and experiments, we are able to confirm its existence and create an explanation for that.