Answer:
c. conservation.   
Explanation:
Conservation: In psychology, the concept of "conservation" was proposed by one of the renowned psychologists named Jean Piaget and is described in the preoperational stage of the cognitive development theory at the age of four-five years yet it completely develops around seven-eleven years in the concrete operational stage.
The process of "conservation" is explained as the tendency of an individual to gain the capability of thinking logically that leads an individual to believe that a specific quantity will remain same irrespective of the container's adjustment with respect to the size or shape.
 In the question above, the given statement signifies the concept of "conservation".
 
        
             
        
        
        
Answer:  The correct answer is :  public; under provide
Explanation:  Markets often cannot allocate resources efficiently, this failure is very frequent in the environmental field. Markets tend to provide very few environmental goods such as parks and open places but they do provide too much air pollution.  One solution to this market failure is government regulation.
 
        
             
        
        
        
The correct answer to this open question is the following.
Although the question does not include options, we can say the following.
Because you live up North, this year you want to prepare for the dark and cold winter months ahead before the seasonal pattern for major depressive disorder takes hold of you again. You decide to try light exposure therapy.
One of the best options people can find to treat SAD or Season Affective Disorder is by taking therapy. In this case, light therapy is the best option.  This means that patience exposures to artificial light treatments. What happens in this scenario is that patients place a kind of device in the form of a box next to them. This box projects a type of "sunlight," trying to stimulate the chemicals on people's brains during the winter months. This way people can get better sleep or keep a better mood during the day.    
 
        
             
        
        
        
Concurring opinion.
A concurring opinion is an opinion written by a Supreme Court justice who agrees with the decision and who the case went to, but may want to add to or comment on part of the decision. On the other hand, a dissenting opinion is by a judge who did not agree with the court decision, and writes down why he/she disagreed.