Answer:
4
Explanation:
According to newton's second law f=ma. so a =f/m
then a=20/5 gives 4
sun⇒plant⇒fly⇒frog⇒snake⇒decomposer(bacteria)
sun⇒grass⇒rabbit⇒fox⇒hawk⇒decomposer(bacteria)
zooplankton⇒krill⇒small fish⇒seal⇒shark
The water cycle is not a nutrient cycle.
