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Correct Answer: D) The Ozone Layer.
Correct Answer: D) Enough for 4 people a year.
Correct Answer: C) Plastic waste releases harmful chemicals when decomposed.
Correct Answer: B) Recycling and waste reduction.
Correct Answer: A) On Earth Day, people plant trees.
Correct Answer: B) Gaylord Nelson.
Correct Answer: C) Gaylord Nelson.
Correct Answer: D) All of above.
Correct Answer: D) 1970.
Correct Answer: B) To pass laws that protect the environment.
Correct Answer: C) Oxygen.
Correct Answer: C) Air pollution leads to a decrease in biodiversity.
Correct Answer: B) Leaves.
Correct Answer: D) Make the environment cleaner.
Correct Answer: C) Senator from Wisconsin who promoted Earth Day.
Correct Answer: C) Durability.
Correct Answer: B) Blue and green.
Correct Answer: D) Earthworms.
Correct Answer: A) A community of living organisms.
Correct Answer: A) An oil spill.
Correct Answer: A) Climate action.
Correct Answer: C) By growing plants.
Correct Answer: A) True.
Correct Answer: C) Oceans.
Correct Answer: A) 20000000.