Answer: Relative Size
Explanation:
Relative Size is a very important monocular cue for depth perception. It works in tandem with the principle of size consistency which posits that closer objects project a larger image on the retina than further objects. 
So essentially closer objects are larger than further objects for depth perception. 
This is why near objects in Tom's photographs appear much larger than those on the opposite shore of the cove.
 
        
             
        
        
        
Child development refers to the process that involves mastering and learning skills like talking, walking, sitting, skipping and tying shoes. It is a process how a child becomes able to do more complex things as they get older. Children develop skills in five main areas of development, these are cognitive development, social and emotional, speech and language, fine motor skills development and gross motor skill development. But Children thrive when they are given these four things: namely Love, encouragement, stimulation and education. 
        
             
        
        
        
Answer:
- <em>A well-organized police force.</em>
 
A functioning government depends on a police force to enact its laws, and to persecute those who do not follow them. The police also ensures that the government has a "monopoly on violence," one of the basic requirements of a state. Finally, the police also provides assistance and protection to citizens.
- <em>Interstate commerce regulations.</em>
 
Commerce fulfills many needs of society. It redistributes goods, encourages cooperation, provides a source of income for people, and connects different regions. However, unregulated commerce can be a problem for the government. Therefore, commerce regulations are necessary for any well-established government.
 
        
                    
             
        
        
        
The correct answer is - This research would be eligible for exemption because the researcher is not interacting with the children and the playground is a public setting. This type of research does not need IRB (IRB being institutional review board also known as ethics committee) review because the researcher will not be interacting with the children in anyway, it is purely observational and the setting is a public place, in addition all children will remain anonymous in the study, therefore the researcher is not breaking any code of ethics.