The leaves no longer have water, which means that there is little osmotic pressure which keeps it turgid.
        
                    
             
        
        
        
I’m not sure but I think it’s A or C
        
             
        
        
        
Ptolemy's model was Geocentric. This means that it put the earth at the center of the solar system, instead of the sun, with all celestial objects orbiting it. The first person to prove the validity of the heliocentric theory was Nicolaus Copernicus.
        
             
        
        
        
Plants reduce the carbon dioxide (CO2) in the atmosphere and create more oxygen, which is needed by all organisms, through photosynthesis. :)