On Oceania's low islands, Rain is typically the only source of freshwater. Oceania includes all of Micronesia, Fiji, and all of Polynesia except the New Zealand. Oceania is often used to describe the regions encompassing the Australian continent and various islands in the Pacific Ocean that are not included in the seven-continent model. 
        
             
        
        
        
The correct answer is option Observations can be made from outside the "system".
The study of the plate tectonics allows the observation of the movement of the plate tectonics. These observation can be study to determine the pattern of the movement from outside the plate tectonics system and the event occurring due to plate tectonics can be predicted.
 
        
                    
             
        
        
        
Answer:
The Sun's layers consist of the following in this order. 
1) Corona
2) Transition Region
3) Chromosphere
4) Photosphere
5) Convection Zone
6) Radiative Zone
and last but not least 7) The Core
Hope this helps ;)
 
        
                    
             
        
        
        
<span>Schizophrenia
This is a mental disorder characterised by failure to understand what is real and abnormal social behaviour .
Studies across 20 countries have shown a strong link between smoking and schizophrenia .</span>
        
             
        
        
        
Answer:
Sigma factors bind to the promoter region of a particular gene and facilitating the binding of RNA Polymerase to the promoter region (formation of the RNA polymerase holoenzyme complex) in order initiate transcription of the gene. 
Put simply - Helps RNA Polymerase do it's job.