Performing voluntary movement because you are controlling the motion.
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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B. To study changes over time
Answer:
Civil Rights Act 1964
Explanation:
Civil Rights Act 1964 is an act proposed by US President John F Kennedy. This Act was enacted to end segregation and authorize the legal ban of racial discrimination in public office on the basis of race, religion or sex. This Act faces strong opposition from congress members from the south.
The enactment of this Act provides equal rights to the African Americans for voting and remove racial discrimination in the public facilities.
