The thing that convinces scientists that current warming trends are not solely part of Earth's natural cycle is B. The current changes are happening much faster than past changes.
<h3>Who is a scientist?</h3>
It should be noted that a scientist simply means someone who studied science and researches in science.
In this case, the thing that convinces scientists that current warming trends are not solely part of Earth's natural cycle is that the current changes are happening much faster than past changes.
In conclusion, the correct option is B.
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Answer:Doing a Macro -level analysis 
Explanation:Macro-level analysis focuses on political, social , ecomic and other factors which affect society and individuals at a larger scale which can't be discovered when society is observed or analysed at a micro level. As a result this analysis focuses on a much broader scale. Manuela is looking at a social issue analysing it by taking into consideration a broad societal scale than focusing on a local scale.
 
        
             
        
        
        
Answer:
The expectations are called A. Roles. 
Explanation:
A role refers to the <em>position an individual carries within society</em>, which comes with certain expectations. Since the individual carries a certain status with this role, there is a definition of what are <em>appropriate and inappropriate behaviors</em> regarding his/her position. 
For example, a school principal has a high status and position within the school community. He/she is required to set a good example for the community so there are expectations regarding an appropriate behavior such as providing support to the staff, for example. An inappropriate behavior would be engaging in illicit acts, for example.