If you don’t water a plant, it dies., If people throw trash in the streets, the city looks dirty., If we reduce car use, the air will be cleaner., If they turn off the lights, they'll save energy., If I had a greenhouse, I would grow my own vegetables., If people cared more about the planet, the world would be a better place., If we lived near the ocean, we could clean the beach every weekend., If animals could talk, we would understand them better., Plants don’t grow unless they get enough sunlight., You can’t log in unless you enter the correct password., We won’t finish the project on time unless everyone helps., Unless it gets colder tonight, the snow will melt., Unless people changed their habits, pollution would continue to increase.,

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