I would say C, because the smoke from coal consumption emits a large amount of carbon dioxide. 
        
                    
             
        
        
        
To measure the genetic and environmental factors influencing the cognitive outcomes  with fragile X, a common genetic disorder causing cognitive impairments. ... The quality of boys' home environments accounted for more of the variance in their cognitive outcomes than it did for affected girls.
        
             
        
        
        
Answer:
D). Those on government assistance.
Explanation:
As per the question, 'the group on government assistance' is more likely to form letters, participate in community activities and along with that they would contact the political leaders or protest against the opposing authorities and contribute their time as well as money in a various political campaign. These groups show more participation in such events and are more likely to be involved in these campaigns <u>because they are being assisted by the government economically and politically both to get their(government's) ideologies successfully conveyed to the common public through these groups and take the lead in elections.</u> Therefore, <u>option D</u> is the correct answer. 
 
        
             
        
        
        
Answer:
The arrival of Europeans had a negative impact for Indian peoples. They lost much of their land, they were exposed to new diseases, they were turned into slaves, their whole lifestyle was affected. 
Explanation: