A New Planet Astronomers have found evidence of what could be a ninth planet in the outer solar system. They say that the planet, probably a gas giant like Jupiter or Saturn, was thrown off the Sun's ecliptic plane thousands of years ago. All the planets in our solar system orbit the Sun in this plane or zone, however the new planet, named Planet 9, has a slightly elongated orbit. This planet's orbit lies very far away from the Sun. In fact, it would take Planet 9 between 10,000 and 20,000 years to go around the Sun just one time. Astronomers have not actually seen Planet 9, but other sources of research have convinced them that such a planet definitely exists. Because Planet 9 has a mass that is 10 times that of Earth's, astronomers are certain that Planet 9 will indeed be classified as a planet rather than a dwarf planet, like Pluto. In the process of Planet 9's discovery, researchers also discovered a cluster of smaller KBOs or Kuiper Belt Objects. These are a very large band of rocky and icy objects found beyond the orbit of Neptune in the solar system. This belt is comparable to the large body of rocks of different shapes and size ranging from dwarf planets to dust particles found between Mars and Jupiter called the asteroid belt. Astronomers believe that Planet 9 herds these KBOs, because their perihelion, or closest point to the Sun, in their course (or orbit) matches that of Planet 9's.

Based on the context of this passage,
A. an orbit is the time taken by a planet to revolve around the Sun
B. the distance between Jupiter and Saturn
C. the shape of the path taken by a planet
D. the periodic path taken by a planet or space object

Drag the tiles to the correct boxes to complete the pairs. match each paragraph to its corresponding purpose. tiles: instructs describes persuades narrates pairs before you purchase a used car from a dealer or an individual, there are important steps you must take. first, examine the car using an inspection checklist, which you can download and print from many websites. then test-drive the car under a variety of road conditions, making sure that it handles well in many situations. finally, ask for the car’s maintenance report and make sure you understand any repairs made on the car. arrowboth "good morning, sal! " uncle freddie said. " for coming in so early today." uncle freddie danced as he spoke. sal yawned. he did not know how his uncle woke up so cheerfully before dawn every day. uncle freddie placed a tray of cookies in front of sal. "i need you to decorate these," he said. he handed sal several tubes of icing. arrowboth the hole created by the meteorite's impact, known as the barringer meteorite crater, can still be seen today. it is one mile wide and over 550 feet deep—20 football games could be played at the same time on its floor, and more than two million people could watch from its sloping sides. arrowboth you know the feeling: it’s minutes until the school bus comes, but you just rolled out of bed, threw on some clothes, barely brushed your teeth, and now you’re racing out the door to catch the bus. you skip breakfast again. that’s three days this week alone! it’s no wonder, then, that by second period you start to feel awful, with your stomach grumbling and your eyelids drooping. my fellow classmates, listen up! you may be surprised by how a few simple changes in your life can have a huge effect on how you feel morning, noon, and night! arrowboth