A. bird
B. rock
C. sunlight
D. water
29. Which of the following is an example of biotic component of an ecosystem?
A. Moonlight
B. Radiation
C. plants
D. water
___30. Which of the following is NOT a natural disturbance to the abiotic components in an ecosystem?
A. earthquake
B. landslide
C. quarrying
D. typhoon​