Answer: A sum total of all living and non-living elements and their effects which influence human life is known as environment. An environmental aspect is an element of an organization's activities, products, and services that can interact with the environment. These can include discharges to water, emissions to air, waste and use of natural resources and materials.
2.Answer: 1.  
Environment plays an important role in healthy living and the existence of life on planet earth.
2. Earth is a home for different living species and we all are dependent on the environment for food, air, water, and other needs. 
3.Everything that surrounds us constitutes our environment.  .
4.  The environment plays an important role in the healthy living of human beings.
 
        
             
        
        
        
Ribosomes are where protein synthesis occurs.
B.
        
             
        
        
        
It's probably C. Because it makes the most sense and photosynthesis doesn't make ATP and if you don't think C. Is the answer then put D.
        
                    
             
        
        
        
The correct answer is protein.
Proteins are macromolecules composed of amino acids with the wide range of structures. Protein functions are diverse:  
•	structural proteins-maintaining the cell shape, (for example, proteins are structural elements in connective tissues like cartilage and bone in vertebrates),  
•	Enzymes - catalyze the biochemical reactions in cells-.
•  Monitors- changing their activity in response to metabolic signals
•	Part of the extracellular matrix or involved in intercellular communication…