1. ART – The art movement known, in English, as Suprematism, which was established in 1913 and peaked later that decade before its swift decline, was founded in—and mostly represented by artists from—what country?
2. CLASS MUSIC – What district is the home—and the colloquial namesake—of London’s Royal Opera House?
3. LITERATURE – Whittier is the last name of what cheerful and irrepressibly optimistic (and arguably naive and self-delusional) character created in 1913 by Eleanor H. Porter?
4. GEOGRAPHY – Namib, Nafud, Rub’ al-Khali, Dasht-e-Lut, Karakum, and Taklamakan are all names of what?
5. SCIENCE – What metric unit of area is roughly equal to 2.47 acres in the U.S. customary system?
6. AMER HIST – The 1932 Norris-La Guardia Act made unenforceable, and the 1935 Wagner Act made illegal, what colorfully named employment contract, which stipulates that a worker’s employment is conditional on not joining a trade union?
See comments for the answers.
hebspeaks 
Questions/Answers
Q1. ART – The art movement known, in English, as Suprematism, which was established in 1913 and peaked later that decade before its swift decline, was founded in—and mostly represented by artists from—what country?
RUSSIA
Q2. CLASS MUSIC – What district is the home—and the colloquial namesake—of London’s Royal Opera House?
COVENT GARDEN
Q3. LITERATURE – Whittier is the last name of what cheerful and irrepressibly optimistic (and arguably naive and self-delusional) character created in 1913 by Eleanor H. Porter?
POLLYANNA
Q4. GEOGRAPHY – Namib, Nafud, Rub’ al-Khali, Dasht-e-Lut, Karakum, and Taklamakan are all names of what?
DESERTS
Q5. SCIENCE – What metric unit of area is roughly equal to 2.47 acres in the U.S. customary system?
HECTARE
Q6. AMER HIST – The 1932 Norris-La Guardia Act made unenforceable, and the 1935 Wagner Act made illegal, what colorfully named employment contract, which stipulates that a worker’s employment is conditional on not joining a trade union?
YELLOW-DOG CONTRACT