Because the world shifts slowly and can change imensly over time
Fairtrade is paying producers a reasonable price for the goods that they produce. Many farmers in LICs are paid very low wages. This means that they cannot escape poverty. Fairtrade gives farmers a better chance in life.
The answer is: "rise in demand for solar power" .
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That religion may not be the end all be all of every scientific question ever posed. What I mean is that religion may not be able to answer every question that comes from the world around us, an example being how religions interpreted the Earth as being the center of everything, when scientifically this is not the case and religions disputed this until they eventually died out or re-evaluated their beliefs.