Read the passage given and answer questions that follow.

If we lived on a planet where nothing ever changes, there would be little to do. There would be no need to study science. If we lived in an unpredictable world, where things changed at random, or in very complex ways, we would not be able to figure things out. Again, there would be no such thing as science. But we live in an in-between universe, where things change, but according to patterns, rules or as we call them, laws of nature. If I throw a stick up in the air, it always falls down. If the sun sets in the west it always rises again the next morning, in the east. So, it becomes possible to figure things out.

Human beings are good at understanding the world. We always have been. We were able to hunt game or build fires only because we had figured something out. There was a time before television, before motion pictures, before radio, before books..... the greatest part of human existence was spent in such a time. Over the dying embers of the campfire, on a moonless night, we watched the stars. The night sky is interesting. There are patterns there. Without even trying, you can imagine pictures