what happens when there is no rain for a long time ?, flood, fire, pollution, drought, what happens when heavy rain covers dry land ?, pollution, fire , flood, lightning, what cases a fire in dry land ?, lightning, snow, animals, wind, which action causes pollution ?, planting trees , throwing trash , watering plants , cleaning the streets, what do animal do during drought ?, sleep, move to find water , make nests, grow bigger, smoke from fires causes..., clean air , cold weather , air pollution, floods.

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