The correct answer is D, Amount of sunshine.
Indeed, fertilizer may or may not increase yields depending on many complex factors such as humidity, dryness, chemical balance, method of dispersion etc. However, it is an established biological principle that plants fare better with sunlight and in the absence of sunlight they yield less produce, whether they are fertilized or not.
 
        
             
        
        
        
Answer:
the long-distance commutes of low-wage service employees.
Explanation:
Wealth gap is the difference between the richest and poorest citizens living in a geographical location based on the level of their assets and net worth i.e assets minus their debts.
Generally, the information generated by the government based on the wealth gap of its citizens is typically used for formulating economic policies, plan and financial budgets.
Economic segregation includes gated communities, exclusive apartment buildings and wealth inequality that combines to increase the wealth gap between the poor and rich people.
In this scenario, a researcher studying income and wealth inequality decides to focus on economic segregation. In addition to observing such features of economic segregation as gated communities and exclusive apartment buildings, it would also be a very good idea to include observations and analysis of the long-distance commutes of low-wage service employees to and from their place of work.
 
        
             
        
        
        
<span>Psychology should study conscious experience
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Functionalists sought to explain the mental processes in a more systematic and accurate manner. this is also the case of structuralism which emerged as the first school of psychology focusing on basic elements of consciousness using a method known as introspection.
        
                    
             
        
        
        
Answer:
A/an external locus of control is related to passivity and learned helplessness and a/an internal locus of control has been positively related to confidence in one’s ability to successfully perform tasks. 
C. external, internal
Explanation:
It was psychologist J.ulian B. Rotter who, in 1954, introduced the term locus of control. It refers to the degree or extent to which we believe we have control over the outcome of events in our lives as opposed to external forces - forces that are beyond our influence. 
External locus of control is when people believe their own behavior will not make much of a difference, that what matters is the outside events and forces. Such people are more passive. On the other hand, internal locus of control is when we believe our behaviors and actions actually have the power to influence events and outcomes. People who present internal locus of control are more confident and active.