Answer:
The description corresponds to an observational study.
Explanation:
In Observational studies, researchers observe the effect of a risk factor without changing what is exposed to it or its conditions. On the other hand, in an experimental study, researchers can introduce a change and study the effects of it.
Answer:
The correct answer is C ''focus on the social advantages to smoking.''
Explanation:
According to cognitive dissonance, to reduce the tension or discomfort that causes us to do something against our beliefs and opinions, we rationalize or justify our actions to ourselves by reconstructing our attitudes. This happens when we have formed and stable attitudes. For example, knowing that smoking is bad for health and smoking a lot, the person is automatically motivated to make an effort to generate new ideas and beliefs to reduce tension until all their ideas and attitudes fit together, constituting a certain internal coherence and can perform the action with a certain mental and motivational balance.
They provided water for food and served as transportation waterways
With the clear differences between northern and southern areas in terms of economy and politics, immigrants going to northern areas, and with the fear that the southern interests, including slavery, in congress would be weakened caused the southern people (mainly represented by whites) to cease from the Union.