The increase in the number of surveys related to dogs in the period may have occurred due to the increase in the number of cases of non-elderly dog deaths.
First, an initial research was done to identify if there were any pathological or external agents, such as the weather, that explained the dogs' death. Once the causative agent is discovered, further research is commissioned to understand the mechanisms of action of the causative agent of death and ways to prevent such events from happening.
 
        
                    
             
        
        
        
A. True
As cultures are introduced to new ideologies, they themselves can change. Take religion as an example: the spreading of religion has drastically changed some cultures. <span />
        
                    
             
        
        
        
<u>The scientific method</u> refers to a set of assumptions, attitudes, and procedures that guide researchers in creating questions to investigate, in generating evidence, and in drawing conclusions.
Attitude is a psychological assemble, a mental and emotional entity that inheres in or characterizes someone, or their attitude is their method to something or their personal view on it. Mindset entails their attitude, outlook, and feelings.
Assumption of thing that is customary as real or as positive to show up, without proof. The researcher is someone whose process includes coming across or verifying facts to be used in a book, application, and so forth
The available frame of statistics or data indicates whether or not a perception or proposition is proper or valid. The conclusion is the quit or finish of an event or method. 
Learn more about Attitude here: brainly.com/question/25379849
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Answer:
A very obvious effect of the emancipation proclamation would be the freeing of African Americans forced to live under slavery. Another effect would be the increasing tension between the North and the South at the time which would eventually lead to the start of the Civil War.
 
        
             
        
        
        
Answer:Some individuals may be natural good at maths or may be just smart kids who are good with mathematics
Explanation:Some students may be intelligent or good at maths which means the shoe size will not be the cause of their quantification skills.
A confounding variable refers to another variable that you may have not take notice of but which is very likely to act on the variable you are trying to measure and make that change you are looking for , its an extra variable. It can mess up your experiment and give you result that are not caused by what your projected. They can assume a correlation that doesn't exist and insert bias in your study. For this reason you have to know these variable before you start your research or study in order to avoid them.