This is called a "map legend" or a "map key". It's usually located on the side or on the bottom, whether some space is available and it lists the symbols used in the map along with their meaning.
Thirteenth amendment!
i have to have a word count before i can comment so ignore this part-
Answer:
B. The study is an observational study because the study examines individuals in a sample comma but does not try to influence the response variable.
Explanation:
Observational studies are studies in which the researchers try to observe the effect of a diagnostic test, treatment, and risk factor without making any change in who is exposed to it and vice-versa. In the observational study, the researcher collect data based on what is heard and seen. In the observational study, the researcher has no control over the variables.
There are three types of observational studies:
1. Case-control studies
2. Cohort studies
3. Cross-sectional studies.
The framers of the constitution limited the powers through checks and balances to prevent one power dominating the country or the other powers. Also to prevent dictatorship, or a monarchy.