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The advantage of organic fertilizers is/are……
a) retain soil moisture   
b) increase aeration
c) release nutrients slowly  
d) all of these

d

Organic fertilizers decrease the risk of ……
a) aeration                                  
b) leaching
c) necrosis                                   
d) apoptosis


b

Which of the following increase the holding capacity of soil?
a) Magnesium             
b) organic fertilizers
c) inorganic fertilizers   
d) all of these

b

Inorganic fertilizers are also known as…….
a) biological fertilizers  
b) chemical fertilizers
c) natural fertilizers                  
d) physical fertilizers

b

Inorganic fertilizers are primarily derived from chemical compounds such as……
a) ammonium nitrate 
b) ammonium phosphate
c) potassium chloride
d) all of these

d

Which of the following is/are the example of inorganic fertilizers?
a) sodium nitrate    
b) mined rock phosphate
c) lime stone           
d) all of these

d