Contents

Wind helps………………….
a) plants                                               
b) animals
c) algae                                 
d) fungi


a

Wind responsible  in plants for…………
a) dispersal of seeds                           
b) pollination
c) dispersal of fruits                            
d) all of these

d

Humidity helps in………….
a) evaporation                    
b) transpiration
c) translation                       
d) both a and b


d

The upper layer of the earth’s crust is called….
a) mantle                                              
b) core
c) soil                                    
d) clay

c

Source of water and nutrients for plants present in…………..  
a) atmosphere                     
b) soil
c) gravity                                              
d) none of these


b

Fire is…………………...….component.
a) biotic                                
b) abiotic
c) ecosystem                        
d) none of these


b