Planting more trees can help ____ air pollution. You should always recycle glass and plastic to ____ the environment. Turning off lights when you leave the room helps ____ wasting energy. The ozone layer helps ____ people from harmful UV radiation. Education is the key to ____ global warming and other ecological problems. We must ____ using too much plastic because it damages the oceans. Planting trees can ____ soil erosion and help the local habitat. Using renewable energy sources helps ____ our planet for future generations.

Revision: Prevent, Avoid, or Protect?

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