Introns because they are coding sequences.
Exons because they are non-coding sequences.
        
             
        
        
        
Read the question fully. 
Think about a severe weather situation you have experienced near your home or have witnessed on the news.
The question is asking you to tell about any severe weather that you have seen, heard, or you've experienced about and just tell them about it.
 
        
                    
             
        
        
        
It radiates light and heat, or solar energy, which makes it possible for life to exist on Earth. Plants need sunlight to grow. Animals, including humans, need plants for food and the oxygen they produce. Without heat from the sun, Earth would freeze.
        
             
        
        
        
The answer u r looking for is- thylakoids. ;)
        
             
        
        
        
Answer:
Minerals
Explanation:
Gases are natural and in the ground, metals are also in the ground as are non metals -just look at dirt- and minerals are usually found in geodes, which are usually fallen bits of asteroid and meteorite that has survived earth's atmosphere