Introns or non coding genes present in the RNA immature molecule is removed and the exons are placed and or spliced together to produce an mRNA molecule with a continuous coding sequence.
Silicates is the answer to this.
Advantages of sky: produce rain ( that is needed for plants, crops, drinking, animals, etc) , Holds the clouds, Sun, moon, we can view the beautiful design of nature by studying the sky, and clouds .
disadvantages: produces potentially harmful weather catastrophes like hurricanes, lightning, thunder, hail, tornados that destroys the original design and performance of nature, killing people and destroying homes, when the sky doesn't produce rain famine occurs.