An ecosystem can be contiguous.Logical formLearned from7 sentences. Forests can be an ecosystem.Logical formLearned from7 sentences. Ecosystems may collapse.Logical formLearned from7 sentences. A benefit may pertain-to an ecosystem.Logical formLearned from7 sentences. An (ecosystem restoration) can be comprehensive.Logical formLearned from7 sentences. Ecosystems can be large.Logical formLearned from7 sentences. A structure may pertain-to an ecosystem.Logical formLearned from7 sentences. (Ecosystem models) may undergo a development.Logical formLearned from7 sentences. (Freshwater ecosystems) can be intact.Logical formLearned from7 sentences. Ecosystems can be cold.Logical formLearned from7 sentences. (Ecosystem effects) can be long-term.Logical formLearned from7 sentences. Persons can be part of an ecosystem.Logical formLearned from7 sentences. An ecosystem can be polar.Logical formLearned from7 sentences. Changes may affect ecosystems.Logical formLearned from7 sentences. Carbon can be in (forest ecosystems).Logical formLearned from7 sentences.