____ we don't plant trees, we ____ get less oxygen ____ we don't print out lots of documents we ____ reduce the amount of papers It ____ be easier to identify wastes ____ you separate the garbage Peter ____ come back to Chile ____ he save money If we____ contaminating the ocean, sea animals ____ be affected ____ it rains, we will ____ to collect it ____ the planet Earth is contaminated, we ____ be in danger If we ____ , we ____ take care the planet.

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