<span>harsh conditions. 
</span><span>high scalers' work </span>
        
             
        
        
        
The supply of warm, moist air decreases.
        
                    
             
        
        
        
Answer:
Carbon is the most valuable element to life. Carbon is the central element for life organic compounds , i.e. include carbohydrates , lipids , proteins and nucleic acids. Cells are made of many complex molecules, called  macromolecules, such as proteins, nucleic acids (RNA and DNA), carbohydrates, and lipids. The macromolecules are a subset of organic molecules (any carbon-containing liquid, solid, or gas) that are especially important for life.
Explanation: