Merrill
When is Earth Day?
April 22
What holiday followed Earth Day in 1972?
World Environment Day
Who wrote the Earth Day theme song?
Abhay Kumar
What scientist proposed the theory of continental drift?
Alfred Wegener
What ongoing process allows water to be constantly recycled?
Water Cycle
When (what year) was the first Earth Day?
1970
A single tree produces enough air to supply in its lifetime for how many people for a year?
4
Who took a zero-carbon voyage from Europe to the United States to raise awareness of climate change?
Greta Thunberg
What American river caught fire in 1969 from all of the waste and pollution filling it?
Cuyahoga River
Frogs belong to which animal group?
Amphibians
What region on Earth produces 20% of the planet's oxygen?
The Amazon rainforest
What is the name of the most recent supercontinent?
Pangea
Which component of an atom might you expect to be orbiting around it?
Electrons
What is it called when you make light change direction by passing it through a lens?
Refraction
The earth has three layers that are different due to varying temperatures. What are its three layers?
Crust, mantle, and core
The United Nations has what name for Earth Day?
International Mother Earth Day
Most of Earth's breathable air comes from where?
The ocean
Who begins food chains?
Producers
In 2011, 28 million trees were planted in which country for the Earth Day "Plant Trees, Not Bombs" campaign?
Afghanistan
How many elements are there in the periodic table?
118
The first Earth Day eventually led to the creation of which government agency?
The Environmental Protection Agency (EPA)
In addition to establishing the EPA, President Nixon also passed which pieces of legislation in 1970 inspired by the Earth Day movement?
National Environmental Education Act, the Occupational Safety and Health Act, and the Clean Air Act
Which President signed the Paris Agreement?
Barack Obama
What is the theme of Earth Day 2024?
Planet vs. Plastics
What is the “powerhouse of the cell?”
Mitochondria