In logic, an entailment is the relationship between sentences whereby one sentence will be true if all the others are also true. Want a less-dry-sounding, real-life example? How about this: Being a good student, for instance, is an entailment of attending classes, learning the material, and keeping up with assignments. An old-fashioned definition of entailment is a set of limitations that restrict the ways property can be bequeathed to heirs.
        
                    
             
        
        
        
Answer:
Modern age is called age of science and technology because of the development in the field of science and technology
 
        
             
        
        
        
The aspect that differentiates social responsibility from other similar concepts is that it adds a ethical imperative.
<h3>What is 
ethical imperative?</h3>
An ethical imperative  serves as a  belief or principle  that is based on the  theory that is  extremely morally necessary. 
In this case, The aspect that differentiates social responsibility from other similar concepts is that it adds a ethical imperative.
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With the increase or decrease of the prices of substitutes, the demand of the substitute goods also decreases or increases. 
Explanation:
Substitutes are the products which can be used in place of another product. For example, a cup of coffee can be taken instead of a cup of tea, or Coke can be taken instead of Pepsi. 
Change in the price of Substitutes can affect the demand of other substitutes. If the price of a product increases, then the demand of its substitute increases, and if the price of the product decreases, then the demand of its substitute also decreases. 
We can understand this relation with an example. Suppose the product is tea. The substitute of tea is coffee. If the price of tea increases, then people will definitely move towards the substitute, which is coffee. This will increase the demand for coffee. Similarly, if the price of tea decreases, people will buy more tea than coffee, which will decrease the demand for coffee. This is how the substitutes affect demand of each other. 
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Answer:
b
Explanation:
 it was big ................