A. The matter in an ecosystem must be continuously replenished. B. The total amount of energy in an ecosystem remains the same. C. The only way to return matter to the soil is decomposition. D. The total amount of water in an ecosystem is always decreasing.
Though energy may change forms as it moves through organisms within an ecosystem, the total amount of energy will always remain the same. Therefore, the answer is "B. The total amount of energy in an ecosystem remains the same." Hope this helps!
