1. oscillating universe theory the universe is a never-ending cycle of big bangs and big crunches. 2. inflation theory a very, very fast expansion and acceleration of the universe happened milliseconds after the big bang. 3. big bang theory the universe has always been and continues to be the same. 4. steady state theory the universe came from a very dense, very hot "fireball" that exploded and expanded into existence.

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

What term describes technology that operates on an atomic level

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?