If the frisbee represents light, what does the fence represent?

Did the universe cool off or get hotter as it expanded after the 'big bang"?

What is known as the rate of business expansion through increasing output and sales as opposed to mergers, acquisitions, and takeovers? a- organic growth b- corporate growth c- inorganic growth d- monetary growth

Consider the image seen here. the image, at point y, represents the process of during which a is being produced.