Ecosystems can be mountainous.Logical formLearned from4 sentences. Damage may be inflicted on an ecosystem.Logical formLearned from4 sentences. Representative may pertain-to an ecosystem.Logical formLearned from4 sentences. A loss of species may accelerate an unraveling of an ecosystem.Logical formLearned from4 sentences. An ecosystem can be for an ipod.Logical formLearned from4 sentences. Marine ecosystems can be rich.Logical formLearned from4 sentences. A danger can be to an ecosystem.Logical formLearned from4 sentences. Ecosystems can be undersea.Logical formLearned from4 sentences. An (oil spill) may occur in a tropical marine ecosystem.Logical formLearned from4 sentences. An ecosystem may pertain-to a community.Logical formLearned from4 sentences. An (oil spill) may occur in an (ecosystem area).Logical formLearned from4 sentences. A balance may pertain-to an ecosystem.Logical formLearned from4 sentences. Pollution may damage an ecosystem.Logical formLearned from4 sentences. Ecosystems can be small.Logical formLearned from4 sentences. A portion may pertain-to ecosystems.Logical formLearned from4 sentences.