Federal is a system of government. This means both the central government and the local government share power. Not sure if the sentences were questions, but I will answer them by numerical order. 1. Unitary 2. Federal 3. Confederation 4. Oligarchy (This is a type of government!) Hope this helped!
The answer is A or C because they wouldn’t just fly north because of predators and water availability so the Robins can either sense the tilt or can tell by the day hours.