A. Computers were discovered in 1822
        
             
        
        
        
Option A, B, D are only applicable for steroid hormones ( hydrophobic)
So the answer is C
        
             
        
        
        
The type of rock that will be formed is METAMORPHIC ROCK.
Metamorphic rocks are pre-existing rocks that are formed as a result of physical or chemical alteration by mean of heat and pressure. The process transform the rock into a denser, more compact rock. Examples of metamorphic rocks are marble, gneiss and schist. Metamorphic rocks can be formed from already existing igneous or sedimentary rock. <span />
        
                    
             
        
        
        
Answer:
Nitrogen fixing bacteria in the soil and within root nodules of some plants convert nitrogen gas on the atmosphere to ammonia.
Nitrifying- bacteria convert ammonia to nitrites.
 
        
             
        
        
        
bacteria are classified as microbes