Contents

7) Which of the following includes in autotrophs?

a) animals                                   

b) green plants

c) invertebrates              

d) aquatic birds


b

8) Autotrophs convert sunlight energy into ……..

a) mechanical energy         

b) electrical energy

c) chemical energy                   

d) kinetic energy


c

9) The process by which autotrophs convert sunlight energy into chemical energy is called

a) respiration                  

b) photosynthesis

c) decomposition                        

d) gaseous exchange


b

10) The chemical energy stored in food is converted into…….

a) mechanical energy           

b) electrical energy

c) heat energy                  

d) both a and c

d

The process in which the chemical energy stored in food is converted into mechanical energy and heat is called…….
a) respiration                
b) photosynthesis
c) decomposition           
d) gaseous exchange

a

The main process/es involved in the transformation of energy is/are…….
a) respiration                       
b) photosynthesis
c) decomposition                
d) both a and b

d