Earth Day Quiz - all levelsOnline version Test your knowledge! by Teacher _ 1 Which day is Earthy Day? a April 22 b December 21 c August 12 d October 31 2 True or False: Earth Day is the one and only day during the year that you should care about the environment and act to protect it. a True b False 3 What is an endangered species? a A species that is threatened by prey. b A species found on land and in the ocean. c A type of organism that is at risk of extinction. 4 True or False: Sounds from boats and sonar devices are dangerous to whales. a True b False 5 Which animals are threatened with extinction? a Giraffes b Elephants c Corals d All of the above 6 True or False: Wasting less food is a way to reduce greenhouse gas emissions. a True b False 7 How many trees does it take to provide a day’s supply of oxygen for 4 people? a 1 b 10 c 50 d 100 8 More than half of the breathable oxygen in the world comes from where? a Forests b The ocean c Flowering plants d Clouds