D. to provide a roadmap of an essay to aid the reader
        
             
        
        
        
Answer:
letter C
Explanation:
C. It supports the personal experience of living off the land with
historical information about how it was done.
 
        
             
        
        
        
When selecting quotations you should never change the meaning of the quotation by changing the context.
        
             
        
        
        
Answer: In  modern systems, a successful State is a territorial unit. As a territorial unit, its sovereignty extends over all the individuals and other things within its given territory.  "A State is sovereign or the supreme power, within its territory and that state  sovereignty extends to all the individuals in a given territory." by Dunleavy and O'leary.
Explanation: Some successful states were separately constituted with their own laws and  institutions but dependent, such as Southern Netherlands and various states in Italy and around the Baltic. Gustavus had been a keen student of both the ancient discourses on military  tactics, and how/why they were used. He incorporated many of these neo-classic “innovations” into his army. Gustavus’ army thus  became more linear, more flexible and more maneuverable.
 
        
             
        
        
        
Answer:
The air in the atmosphere consists of nitrogen, oxygen, which is the life-sustaining substance for animals and humans, carbon dioxide, water vapor, and small amounts of other elements (argon, neon, etc.). Higher in the atmosphere air also contains ozone, helium, and hydrogen.
Explanation:
Oxygen- is an important gas, both for humans as well as the atmosphere. It supports breathing for living beings, but at the same time, oxygen is a combustible gas, which means, it can catch fire quickly.
Carbon dioxide- is infused into the air due to respiration. Living beings inhale oxygen and exhale carbon dioxide. 
Water Vapor- When the water present in the water bodies evaporates due to heat, it rises and mixes into the atmosphere.