Answer:
2.Emission of smoke from cars
-Walk or use bicycle instead of riding a car
3.Rotting garbage in landfills
-Reuse,Reduce, Recycle
4.Smoke from factories
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Fill in the table with the correct match of human activity as shown in the picture and state what you can do to reduce the effects of human activities. Select from the choices in the box of word pool. Choices on the ways to reduce the effects of human activities can be repreated twice.