Answer:
im not sure but its wind energy
Answer:
c. Observational studies have both independent and dependent variables.
d. Observational studies can be used to test hypothesis.
Explanation:
Observational studies are ones in which a researcher makes observations about his thoughts and views. He observes the risk and other effects before actual test takes place. This is usually the initial phase of research where observations are made for suitability of certain things that are to be researched. There is initial feasibility test conducted to identify whether the further research process is beneficial or not.
There is something that needs to be shown in order to answer this question like a map or a piece of evidence
Answer:
All the questions you answered and how many times you helped other people/animals.
Explanation:
The roman empire became difficult for one central authority to govern because of its size. ... Constantine was the ruler of the western part of the empire and he moved the capital because the eastern part could be easily more governed from Constantinople.
