D. they had pyramids and palaces in their centers
 
        
             
        
        
        
Its important to note that that the free market refers to a type of economy wherein the government requires little to no restrictions and regulations on buyers and sellers. In a free market those who participate are the ones that decide what products are produced, how and when they are made, who they are offered to and what price they sell for. This is all determined by supply and demand. With all of this in mind the countries in which the free market economy is most dominant in the: C) United States, United Kingdom, Singapore and Hong Kong. 
 
        
                    
             
        
        
        
<span>The answer is True. A soil horizon is a cross-section of the physical layers that make up the soil. The soil horizons include such features as the organic layer, surface layer, subsoil, substratum and bedrock. Each horizon is unique and different depending on the land it is found on.</span>
        
                    
             
        
        
        
Answer:
This is called cluster sampling procedure.
Explanation:
In this type of procedure, a group of elements is considered instead of individual units. This proceddure is usually based on geography, and it's useful due to its efficiency regarding cost and time. 
There are a few disadvantages, though: it might not be diverse enough to be significant, and it's possible that some elements of other groups (in this case, other districts) share some features. 
 
        
             
        
        
        
Answer:
Limiting freedom of speech can cause rebellion amongst citizens.
Explanation:
When the government or any other institution tries to limit a person's freedom of speech it can cause significant issues. This is especially true if the person's speech is trying to bring to light a social, legal, or economic problem within a country. 
For example, if the US government passed a law that was wildly unpopular and limited the speech of people who protested against it, it would cause even more problems within the US. This is due to the fact that the government is trying to control what people say and how they feel.