Space
A black hole has gravity so strong that not even this can escape.
Light
In 1872 Congress established this as America’s first national park.
Yellowstone
What is April’s birthstone?
Diamond
The creation of the Environmental Protection Agency (EPA) was inspired by what holiday?
Earth Day
60 percent of the world’s population lives on what continent?
Asia
Polaris, also known as the North Star, is a part of what constellation?
Ursa Minor, the Little Dipper
What is the highest mountain in the United States?
Denali
According to the old saying, what do April showers bring?
May flowers
What is the most commonly littered item?
Cigarette butts
Measuring nearly 7 miles deep, the Mariana Trench can be found in which ocean?
Pacific Ocean
The three Pyramids of Giza are in the same position as the three stars that make up the belt of this constellation.
Orion the Hunter.
What is the longest river in the United States?
Missouri River
This obscure holiday, which is on April 26, is celebrated by planting trees.
Arbor Day
What classic Dr. Seuss book about the plight of the environment features a title character who "speaks for the trees?"
The Lorax
The coldest temperature ever recorded on Earth was -128.6°F in Vostok, which is on which continent?
Antarctica
What is the only planet NOT named after a Greek or Roman god?
Earth
The Colorado River is responsible for carving out this natural wonder located in the southwest United States.
Grand Canyon
This insect migrates thousands of miles northward from Mexico to the US and Canada.
Monarch butterfly
In 1969 the Cuyahoga River caught fire as a result of all the pollution. In what US city did this happen ?
Cleveland, OH
Lake Baikal, which is the world’s deepest lake and goes down 2,442 feet, is located in which country?
Russia
Neil Armstrong was the first astronaut to walk on the moon. Who was the second?
Buzz Aldrin
From its underwater base to peak, Mauna Kea is considered to be the tallest mountain in the world. What state is it located in?
Hawaii
What is the most common trigger of springtime allergies?
Pollen
What is the most heavily polluted river in the state of Maine?
Androscoggin River
Averaging about 26 feet of snow each year, Aomori City is the snowiest place in the world and is located in what country?
Japan