Answer:
Both developed and developing countries have had significant negative impacts on the environment. 
Explanation:
The environment has been very badly affected by human activity. The negative effect has been present for a very long time, progressively becoming more and more serious, but since the start of the Industrial Revolution it has exponentially increased and the effects have been horrific. While there are differences between the impact of developed and developing countries, the fact is that both have had significant negative impacts.
The now developed countries were actually the first ones to start with massive impact on the environment, which was a result of the usage of fossil fuels, rapid economic growth, and constantly growing demand for natural resources. The developing countries have started off later with their massive impact, but it has had the same results. While the developed countries are turning a page and try to be as environmentally friendly as possible, that is not the case with the developing countries that try to become developed. To put it simply, The forests that were destroyed in the UK several hundred years ago are not getting back, and the forests that were recently destroyed and still are getting destroyed in Indonesia will not just come back, at least not with the current trends. 
 
        
             
        
        
        
Because of gravity... if you want a more detailed answer look it up on google!
        
             
        
        
        
<span>The region is predominantly a volcanic area as there are a lot of activities in the place. The Aleutian arc itself is a volcanic arc that is made up of a number of active and inactive volcanoes. The name Aleutian is a name of a nearby island. In a nutshell the arc suggest that there are a number of geographic activities such as volcanoes happening in that area</span>
        
             
        
        
        
C, because it is bounded to the west by the Black Sea