Two of the main characteristics of systems are that they can be closed or open. Closed systems do not need to interact with parts of their environment in order to exist, while open systems 1. cautiously Interact
2. must interact
3.alternately interact
4.may choose to interact​

Why is the supremacy clause considered to be the root of federalism?

1. once you decide that it is safe to move out of traffic, what steps should you follow to ensure safe passage? 2. give some examples where it is unsafe to travel at the speed limit 3. when parking downhill with a curb, what steps would you follow with an automatic transmission? what about manual transmission? 4. what are three things you can do to safely leave a vehicle? ! its due in 3 hours! 100 points to anyone who can at least with one : (

Which general staff member is responsible for ensuring that assigned incident personnel are fed and have communications, medical support, and transportation as needed to meet the operational objective?