Contents

Hawk is……………...
a) primary consumers 
b) tertiary consumers
c) secondary consumers
d) none of these

b

Explanation: lion, tiger and hawk get their food from primary consumers and secondary consumers 



Decomposers are also called………………..
a) saprophytes                    
b) parasites
c) producers                         
d) none of these


a

The cleaners of ecosystem are………………
a) bacteria                                            
b) fungi
c) algae                                 
d) both a and b

d

Flow of Materials and Energy in The Ecosystem:



The main source of energy in ecosystem……
a) sun light                          
b) air
c) wind                                  
d) none of these

a

Light energy change into chemical energy by
a) respiration                       
b) photosynthesis
c) metabolism                     
d) all of these


b