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Correct Answer: B) 2070.
Correct Answer: D) To the ozone layer.
Correct Answer: A) In my opinion, my town is sometimes very dirty.
Correct Answer: C) Incineration.
Correct Answer: D) All of them.
Correct Answer: B) Biodiversity.
Correct Answer: C) Tropical forests.
Correct Answer: A) 1.5 meter.
Correct Answer: D) 1986.
Correct Answer: B) Nitrogen.
Correct Answer: B) 18.
Correct Answer: A) Biodiversity.
Correct Answer: B) Rain-water Harvesting.
Correct Answer: B) Look after the planet.
Correct Answer: A) Marigold.
Correct Answer: C) Yellow.
Correct Answer: C) Decibals.
Correct Answer: B) Water.
Correct Answer: D) Brazil.
Correct Answer: D) A type of microscopic algae.
Correct Answer: C) 53.
Correct Answer: A) Consumption must be reduced.
Correct Answer: C) Republic of Korea.
Correct Answer: C) 1 billion.
Correct Answer: A) True.