Coal
Coal is a combustible black rock that is formed from prehistoric plant remains. Coal is formed from the anaerobic decomposition of dead plant matter such as trees, ferns, mosses and other marsh plants that grew on the earth surface over millions of years ago.  Coal is composed largely of carbon and is usually burned as a fuel.
 
        
                    
             
        
        
        
Answer:
D
Explanation:
Water and air circulate around the world in water currents and wind systems (like prevailing winds) respectively, hence distribute energy and whatever else they are carrying across the globe. This is why polluting the oceans in the equatorial region will have indirect consequences for marine life in the poles. 
Pollution of air through emission  of greenhouse gases in one part of the globe will contribute to global warming across the world because these emissions will be carried around by prevailing winds and diffuse across the atmosphere. 
Global warming also causes climate change that subsequently causes the displacement or migration of organisms when this change in climate is unfavorable  
 
        
                    
             
        
        
        
Explanation:
One of the benefits of a vegetarian diet is a reduction in your impact on the environment. Animals store only a small fraction of the energy they extract from the food they eat, and the rest is wasted as heat.
 
        
             
        
        
        
The Pathway 
• air enters the nostrils 
•passes through the nasopharynx
•the oral pharynx 
•through the glottis 
• into the trachea 
• into the right and left bronchi, with branches and rebranches into 
• bronchioles each of which terminates in a cluster 
• alveoli
        
             
        
        
        
The answer is: b.<span>They have been genetically modified.</span>
>Genetically modified foods<span> or </span>GM foods are <span> </span>genetically engineered foods. They <span>are foods produced from </span>organisms<span> that have had changes introduced into their </span>DNA<span> using the methods of </span>genetic engineering.
>Bioengineered foods<span> are foods that have had a gene from a different species of plant or other organism introduced to produce desired characteristics or traits.</span>