Briefly describe the advocacy work of Malala Yousafzai, Greta Thunberg, and John Lewis, and the causes they championed.

Malala Yousafzai is a Pakistani activist who champions the right to education, especially for girls. After surviving an assassination attempt by the Taliban in 2012, Malala gained international recognition for her activism. She founded the Malala Fund, which advocates for girls' education globally, particularly in marginalized communities. Malala's advocacy work revolves around promoting gender equality and education as vital tools for challenging societal norms and injustices.

Greta Thunberg, a Swedish environmental activist, gained international prominence through her work demanding urgent action on climate change. She started her advocacy journey by staging solo strikes outside the Swedish Parliament to protest government inaction. This movement, known as Fridays for Future, soon spread worldwide. Greta has been vocal about the need to address the climate crisis, urging politicians and world leaders to take immediate measures to combat global warming and protect the planet for future generations.

John Lewis was an American civil rights leader and politician. He played a vital role in the Civil Rights Movement during the 1960s and fought against racial segregation and discrimination. Lewis actively participated in nonviolent protests, such as the Freedom Rides and the March on Washington. He co-founded the Student Nonviolent Coordinating Committee (SNCC) and later served as a U.S. Congressman. Throughout his career, Lewis championed voting rights, desegregation, and equality for all people, consistently advocating for justice and civil rights reforms.