For the wusses that keep reporting my old questions grow up it was a joke my god

Which two statements are true about a system? 1. a system is a group of objects analyzed as one unit. 2. energy that moves across system boundaries is conserved. 3. there’s only one way to define the boundaries of a system. 4. all systems are made by humans.

What type of animal might be preserved in a tar pit

Students will know how much aid they will be getting once they receive an from the college