Defunct is the word you would use but either your non-existant or your dead.
        
             
        
        
        
Formations of clouds contain water droplets ~
~Hope it helps ~
        
                    
             
        
        
        
B is unsustainable as this is a practice of intensive farming usually conducted indoors, and is resource and energy expensive. C is unsustainable because groundwater is a limited resource and groundwater can take 1000s of years to be recharged. D is unsustainable as this involves moving water across vast distances and is expensive and ecologically damaging. A is sustainable as drought-resistant plants would in the long run use less water.
        
                    
             
        
        
        
Answer:
animal cells: They do not have a cell wall, and have multiple vacuoles. 
pplant cells: They have a cell wall,  chloroplast, and can perform photosynthesis, and also contains a single large vacuole which is used for storage.
Explanation:
 
        
             
        
        
        
Positron Emission Tomography scan of the brain of cocaine addicts showed that the drug affects how the brain use glucose. Cocaine users' brain cannot use glucose efficiently and there are also reduced metabolic activity in other areas of the brain.