The following text is for questions 9 to 12.
Scientists Reveal First Image Ever Made of a Black Hole
Scientists on Wednesday revealed the first image ever made of a black hole, depicting its hot, shadowy edges where light bends around itself in a cosmic effect.
Assembling data gathered by eight radio telescopes around the world, astronomers created the picture showing the violent neighborhood around a supermassive black hole, the light-sucking monsters of the universe theorized by Einstein more than a century ago and confirmed by observations for decades. It looked llke a flaming orange, yellow, and black ring.
"We have seen what we thought was unseeable. We have seen and taken a picture of a black hole. Here it is," said Sheperd Doeleman of Harvard.
Jessica Dempsey, a co-discoverer and deputy director of the East Asian Observatory in Hawaii, said it remmded her of the powerful flaming Eye of Sauron from the "Lord of the Rings" trilogy.
Unlike smaller black holes that come from collapsed stars, supermassive black holes are mysterious in origin. Situated at the center of most galaxies, including ours, they are so dense that nothing, not even light, can escape their gravitational pull. This one's "event horizon"-the point of no return around it, where light and matter begin to fall inexorably into the abyss-is as big as our entire solar system.
Three years ago, scientists using an extraordinarily sensitive observing system heard the sound of two much smaller black holes merging to create a gravitational wave, as Albert Einstein predicted. The new image, published in the Astrophysical Journal Letters and announced around the world in several news conferences, adds light to that sound.
Outside scientists suggested the achievement could be worthy of a Nobel Prize, just like the gravitational wave discovery.
While much around a black hole falls into a death spiral and is never to be seen again, the new image captures "lucky gas and dust" circling at just far enough to be safe and seen millions of years later on Earth, Dempsey said.
"Taken over four days when astronomers had to have the perfect weather all across the world and literally all the stars had to align, the image helps confirm Einstein's general relativity theory," Dempsey said. Einstein a century ago even predicted the symmetrical shape that scientists just found, she said.
"It's circular, but on one side the light is brighter," Dempsey added. "That's because that light is approaching Earth."
(Adopted from: https://www.hindustantimes.com/world-news/scientistsreveal-first-image-ever-made-of-a-black-hole/storyKhKhbqAAp2kuVt4F7oG1JN.html (April 11, 2019))
Why is one side of the black hole brighter?
It's far from the Sun.
It's around the Sun.
It's close to the Sun.
It's far from the Earth.
It approaches the Earth.
Soal menanyakan alasan atau sebab satu sisi lubang hitam lebih cerah.
Kata kunci pada soal adalah brighter. Temukan kata tersebut di dalam teks dan perhatikan kalimat yang muncul sebelum dan atau sesudah kata itu.
Kata brighter dapat ditemukan pada paragraf akhir yang merupakan kutipan dari komentar Jessica Dempsey, yaitu "It's circular, but on one side the light is brighter" yang artinya "Bentuknya bundar, tetapi di satu sisi cahayanya lebih terang". Kemudian setelah kalimat tersebut muncul kalimat "That's because that light is approaching Earth" yang artinya "Itu karena cahaya tersebut mendekati bumi.
Signal words "because" yang artinya "karena" pada kalimat tersebut menunjukkan sebab yang dapat menjawab pertanyaan pada soal. Jadi, dapat disimpulkan bahwa satu sisi pada lubang hitam lebih cerah karena cahaya tersebut mendekati bumi.
Jadi jawabannya adalah, E. It approaches the Earth."
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