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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 is life ? a: hell b: gods bible c: or depression

2) the relationship between temperature in degrees fahrenheit, f, and units kelvin, k, is given by the formula k32) 273.15. which of the following readings, in kelvins, is equivalent to a fahrenheit reading of 7 (rounded to the nearest hundredth decimal place)?