Poverty, racism, sexism, inadequate and unequal education practices among different social classes, racial barriers, and unfair hiring practices, and lack of education are some social issues that are a result of high unemployment. 
Hope this helps! :-)
        
             
        
        
        
Answer:
This is your opinion not someone else's
Explanation:  
Example1- I believe Americans should approve the new constitution because... your reasoning
Example2- I believe Americans should not aprove the new constitution because... your reasoning
If your teacher allows you too you can write you do and you don't it all depends on what you think and if your teacher aproves.
Instead of I believe you can also use I think etc.
Hope this helps :)
 
        
                    
             
        
        
        
It helped by giving the people something to hunt with and defend their self with. THe paleolithic period was hard and you died easly. The spears where made for pertection and hunting. 
I know i am not a good speller. that is the one subject i dont do good in. Sorry