18.93million is the answer. the population in 1980 was 5.93m and 24.86m in 2017
        
             
        
        
        
Answer:
Object permanence           
Explanation:
Jean Piaget has given his theory of cognitive development in 1936. In his theory, he has mentioned four stages of development in which object permanence comes under the first stage of development i.e the sensorimotor stage that lasts from birth to 18-24 months old. 
Object permanence: This is the milestone of the sensorimotor stage. It is defined as the capability of a child to apprehend that an object exists even if it cannot be sensed or perceived (heard, touched, seen, etc). Object permanence develops between the age of 4-7 months. 
 
        
             
        
        
        
The president would be interviewed by Congress and a hearing would be made to impeach the president, just because the president is impeached doesn't mean he's kicked out
        
                    
             
        
        
        
Answer:C) Conspicuous consumption
Explanation:
Conspicuous consumption occurs when people spend money on luxurious materials for the sake of being seen as economical powerful or people who earns a lot of money or who have acquired wealth. This public display of wealth by buying luxurious materials is aimed at maintaining a particular high social status.
 
Conspicuous consumption aims at getting those around envious of what one has as they display it publicly.conspicuous compassion is another form in which people get engaged with charity in order to be noticeable within society as the powerful and wealth members.
Lindsey buy a hummer which is an expensive car that will draw eyes from his peers and make her look powerful and wealth hence increasing her social status.
 
 
        
             
        
        
        
a. stimulus 
Stimulus is something that can evoke a physiological response, it can be in or external.