Answer:
c.
a decrease in the available water
Explanation:
An ecosystem has experienced a recent decrease in its plant populations. Which of the following is a possible reason for the decline?
a.
an increase in the number of predators
b.
a decrease in the number of prey
c.
a decrease in the available water
d.
an increase in the available land space
Ecosystem refers to a community of animals, plants, microbes in a particular area. It deals with how these organisms interact with their environment. There is usually a energy flux and nutrient cycle in an ecosystem.
Back to the question
the decline in plant population is due to the decrease in available water. Plants need water, sunlight, air and nutrient(micro and macro) for survival. Unavailability of these in right quantity will hamper the growth of the plant.
c.
a decrease in the available water is a more suitable option
