Can some one help me fill these out?

Which situation is an example of a citizen participating in a politicial process

In the three centuries from ad1100 to ad1400 many changes took place in western

Which of these is an example of physical systems impacting the environment? a flood causes erosion and loss of shoreline. people fill a lake before building houses near it. an earthquake causes a building to fall. a native tribe considers a volcano to be sacred.