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Correct Answer: B) Participate in a peace march.
Correct Answer: D) 1970.
Correct Answer: A) 3%.
Correct Answer: A) True.
Correct Answer: A) Recycle.
Correct Answer: D) It has life.
Correct Answer: D) Reduce.
Correct Answer: B) Gaylord Nelson.
Correct Answer: A) 1970.
Correct Answer: B) Are our windmills on the Altamont hills by Lammersville School.
Correct Answer: B) Planting trees.
Correct Answer: B) 1970.
Correct Answer: A) To support our environmental protection.
Correct Answer: D) In playing.
Correct Answer: A) IS.
Correct Answer: A) Serious.
Correct Answer: C) Nitrogen.
Correct Answer: C) Plants.
Correct Answer: B) Life.
Correct Answer: A) The Clean Air Act, which controlled air pollution.
Correct Answer: B) Vivid.
Correct Answer: B) To promote environmental protection and awareness.
Correct Answer: B) People plant trees in parks.
Correct Answer: A) 4.5 billion.
Correct Answer: D) All of the above.