Question 2 of 21

Which U.S. president helped to establish Yellowstone National Park as a protected area?

... In addition to his work creating Yellowstone National Park, Teddy Roosevelt established dozens of wildlife refuges across the United States. He also created the first federal Bureau of Forestry.

Question 3 of 21

In addition to founding the Sundance Institute in 1981, this actor has raised money and awareness for many environmental causes.

... Robert Redford is a well-known environmentalist who has advocated for causes such as the protection of the Arctic National Wildlife Refuge and investment in renewable energy.

Question 4 of 21

What famous photographer earned the Presidential Medal of Freedom in 1980 for his artistic and conservation efforts?

... Photographs by Ansel Adams played an important role in environmental lobbying and education efforts by the Sierra Club and other conservation groups.

Question 5 of 21

In 2011, The Daily Green awarded this actor its "Heart of Green" award for his environmental work.

... Matt Damon was one of the founders of H2O Africa (among other projects), a group that plans and finances clean water efforts in developing regions.

Question 6 of 21

This songwriter penned the Shirelles' 1961 hit "Will You Love Me Tomorrow" and also played a role in the passage of the Northern Rockies Ecosystem Protection Act.

... In addition to her work as an environmental activist, Carole King has written more than 400 songs.

Question 7 of 21

What writer and conservationist is often referred to as "the father of the national parks"?

... John Muir played a key role in the establishment of the first national parks. He also founded the Sierra Club and served as its first president.

Question 8 of 21

Wangari Maathai, who was awarded the Nobel Peace Prize in 2004, was also a Member of Parliament in this African nation.

... Kenya's Wangari Maathai was a founder of the Green Belt Movement, a group responsible for planting more than 30 million trees throughout Kenya.

Question 9 of 21

Chancellor Angela Merkel has established a goal for this country to generate half of all its electricity from renewable sources by 2050.

... Thanks to Merkel, Germany has one of the highest renewable-energy production rates in the world, with more than 12 percent of energy derived from renewable sources.

Question 10 of 21

What celebrity partnered with the World Wildlife Fund in 2010 as part of its "Save Tigers Now" campaign?

... Leonardo DiCaprio is also the proud owner of a Fisker Karma, a six-figure hybrid that gets around 100 miles (160 kilometers) per gallon.

Question 11 of 21

Which Avatar (2009) star has also spoken on behalf of marine conservation efforts and raised awareness of ocean acidification?

... Sigourney Weaver received the 2011 Rachel Carson Award for environmental conservation in recognition of her various contributions to the cause.

Question 12 of 21

What animal is Jane Goodall known for protecting?

... Jane Goodall has spent more than 50 years studying chimpanzees and advocating their protection in the wild.

Question 13 of 21

Which actor has his own show on Planet Green, as well as his own line of green cleaning products?

... The actor and green tech popularizer Ed Begley, Jr. has not only driven an electric car for three decades -- he also owns a bicycle-powered toaster oven.

Question 14 of 21

What former politician earned the 2007 Nobel Peace Prize for his documentary An Inconvenient Truth (2006)?

... Before he won acclaim for his famous documentary -- and even before he was Vice President of the United States -- Al Gore published a best-selling environmental call-to-action called "Earth in the Balance: Ecology and the Human Spirit."

Question 15 of 21

Marina Silva, a member of the Brazilian Senate, is famous for her activism for this endangered region.

... Silva has long worked to protect the Amazon. Over the years, her efforts have helped to decrease deforestation rates by a substantial margin.

Question 16 of 21

In 2005, Mayor Ken Livingstone pledged to make this mega-city the most sustainable city on the planet.

... In 2005, Livingstone announced the formation of a climate change agency that would help London cut carbon dioxide emissions by a whopping 20 percent.

Question 17 of 21

Many credit this woman with launching the modern environmental movement with the release of her book Silent Spring in 1962.

... Rachel Carson worked for the U.S. Fish and Wildlife Administration, where she courageously spoke out against the use of chemicals and pesticides such as DDT, which was eventually banned in the United States.

Question 18 of 21

John James Audubon is best known for his detailed sketches of these creatures.

... Audubon spent more than 18 years searching for and sketching more than 435 types of North American birds.

Question 19 of 21

Who published the first textbook on game management in 1933, as well as a best-selling almanac in 1949?

... Leopold helped to develop both the Carson and Gila National Forests, and is known as the father of wildlife ecology.

Question 20 of 21

What green politician helped pave the way for the formation of the U.S. Environmental Protection Agency, and has long spoken out against the use of nuclear power?

... Ralph Nader played a key role in the passage of the Clean Air Act and the Clean Water Act.

Question 21 of 21

What famous botanist spent his 50th birthday in jail after he was arrested during a protest in Tasmania?

... Bellamy credits a trip to Sierra Leone as the inspiration behind his environmental activism.

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