Answer:
Option A
Explanation:
The green houses gases concentration increases in the the troposphere layer of the atmosphere due to which the sunrays (IR radiation) reflected back by earth are restricted by the green house gases thereby increasing the temperature of the earth and make the climate warmer. 
Hence, option A is correct
 
        
                    
             
        
        
        
Answer:
C
Explanation:
"Vouchers in higher education do not improve our public schools and colleges, because experiments show us that education vouchers divert much-needed public funds for the few and have weakened the entire system."
 
        
             
        
        
        
Answer:oximatelyo  important issue for the Netherlands, as due to its oelevation, approximately two thirds of its ar
 
        
                    
             
        
        
        
Answer:Herbivores 
Why?Well,herbivores only eat plants.If all producers went away,herbivores would die.
 
        
             
        
        
        
The defense mechanisms is he employing to reduce his own guilt feelings is denial and hostility to those involve in drug abuse.
<h3>What are defense mechanism?</h3>
Defense mechanisms are known to be a kind of behaviors that people often use to separate themselves from any kind of unwanted or unpleasant situations, actions, or thoughts. 
They are regarded as  psychological strategies that can help people put distance between themselves and ill feelings, such as guilt.
Learn more about defense mechanism from
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