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Reading & Writing · Expression of Ideas · 86 questions · every one comes with a full explanation.

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  1. 1Most of the planets that have been discovered outside our solar system orbit G-type stars, like our Sun. In 2014, ______ researchers identified a planet orbiting KELT-9, a B-type sMedium · Expression of Ideas
  2. 2The Babylonian king Hammurabi achieved much during his forty-year reign. He conquered all of Mesopotamia and built Babylon into one of the most powerful cities of the ancient worldMedium · Expression of Ideas
  3. 3Some members of the US Supreme Court have resisted calls to televise the court's oral arguments, concerned that the participants would be tempted to perform for the cameras (and thMedium · Expression of Ideas
  4. 4Award-winning travel writer Linda Watanabe McFerrin considers the background research she conducts on destinations featured in her travel books to be its own reward. ______ McFerriMedium · Expression of Ideas
  5. 5In 1873, Spanish scientist Santiago Ramón y Cajal observed that brain fibers have distinct boundaries with clear end points, a finding that went against earlier assumptions about tMedium · Expression of Ideas
  6. 6For years, biologists have experimented with using grime-eating bacteria rather than harsh chemicals to clean artworks, and results have been impressive overall. ______ these bacteMedium · Expression of Ideas
  7. 7Alexander Lawrence Posey (1873–1908) varied his focus and tone depending on the genre in which he was writing. In his poetry, he used heartfelt language to evoke the beauty and peaMedium · Expression of Ideas
  8. 8Okot p'Bitek's poem Song of Lawino (1966) explores postcolonial Ugandan life through the eyes of a woman living in a rural village. With its vibrant imagery, bitingly satiric tone,Medium · Expression of Ideas
  9. 9Because an achiral molecule is symmetrical, flipping it yields a structurally identical molecule. A flipped chiral molecule, ______ can be compared to a glove that has been turned Medium · Expression of Ideas
  10. 10Jhumpa Lahiri's story collection Interpreter of Maladies features multiple stories about romantic relationships. In "This Blessed House," newlyweds argue over whether to replace itMedium · Expression of Ideas
  11. 11Before California's 1911 election to approve a proposition granting women the right to vote, activists across the state sold tea to promote the cause of suffrage. In San Francisco,Medium · Expression of Ideas
  12. 12In 2019, researcher Patricia Jurado Gonzalez and food historian Nawal Nasrallah prepared a stew from a 4,000-year-old recipe found on a Mesopotamian clay tablet. When they tasted tMedium · Expression of Ideas
  13. 13In 1933, the Twentieth Amendment to the US Constitution was ratified. The amendment mandates that presidential inaugurations be held on January 20, approximately ten weeks after thMedium · Expression of Ideas
  14. 14The more diverse and wide ranging an animal's behaviors, the larger and more energy demanding the animal's brain tends to be. ______ from an evolutionary perspective, animals that Medium · Expression of Ideas
  15. 15In his 1925 book The Morphology of Landscape, US geographer Carl Sauer challenged prevailing views about how natural landscapes influence human cultures. ______ Sauer argued that iMedium · Expression of Ideas
  16. 16Establishing Coordinated Universal Time (UTC) is no easy task. Each month, readings of a single second from atomic clocks around the world are taken and sent to the International BMedium · Expression of Ideas
  17. 17Earth's auroras—colorful displays of light seen above the northern and southern poles—result, broadly speaking, from the Sun's activity. ______ the Sun releases charged particles tMedium · Expression of Ideas
  18. 18When, in the 1800s, geologists first realized that much of Earth had once been covered by great sheets of ice, some theorized that the phenomenon was cyclical, occurring at regularMedium · Expression of Ideas
  19. 19Originally coined by economist Joan Robinson to refer to markets with multiple sellers of a product but only one buyer, the term "monopsony" can also refer to markets where demand Medium · Expression of Ideas
  20. 20The chemical trimethylamine N-oxide not only gives fish their fishy smell but also protects them from crushing hydrostatic pressure in deep waters. Trimethylamine N-oxide strengtheMedium · Expression of Ideas
  21. 21One poll taken after the first 1960 presidential debate suggested that John Kennedy lost badly: only 21 percent of those who listened on the radio rated him the winner. ______ the Medium · Expression of Ideas
  22. 22A firefly uses specialized muscles to draw oxygen into its lower abdomen through narrow tubes, triggering a chemical reaction whereby the oxygen combines with chemicals in the fireMedium · Expression of Ideas
  23. 23With her room-sized installation The Interstitium, Iranian American artist Laleh Mehran succeeded in creating a space that felt, as intended, both "familiar and distant." ______ wiMedium · Expression of Ideas
  24. 24Researchers Helena Mihaljević-Brandt, Lucía Santamaría, and Marco Tullney report that while mathematicians may have traditionally worked alone, evidence points to a shift in the opMedium · Expression of Ideas
  25. 25Although those who migrated to California in 1849 dreamed of finding gold nuggets in streambeds, the state's richest deposits were buried deeply in rock, beyond the reach of indiviMedium · Expression of Ideas
  26. 26Archaeologist Sue Brunning explains why the seventh-century ship burial site at Sutton Hoo in England was likely the tomb of a king. First, the gold artifacts inside the ship suggeMedium · Expression of Ideas
  27. 27In the early 1900s, Jovita Idár fought injustice on both sides of the Mexico–United States border. As a reporter for the Texas newspaper La Crónica, she voiced support for the MexiMedium · Expression of Ideas
  28. 28In November 1934, Amrita Sher-Gil was living in what must have seemed like the ideal city for a young artist: Paris. She was studying firsthand the color-saturated style of France'Medium · Expression of Ideas
  29. 29"Wishcycling"—putting nonrecyclable items into recycling bins under the mistaken belief that those items can be recycled—ultimately does more harm than good. Nonrecyclable items, sMedium · Expression of Ideas
  30. 30At two weeks old, the time their critical socialization period begins, wolves can smell but cannot yet see or hear. Domesticated dogs, ______ can see, hear, and smell by the end ofMedium · Expression of Ideas
  31. 31To discover which fruit varieties were grown in Italy's Umbria region before the introduction of industrial farming, botanist Isabella Dalla Ragione often turns to centuries-old liMedium · Expression of Ideas