Aurora Borealis and Aurora Australis
Have you ever wondered how the lights that illuminate the night sky with dazzling colors in places like Alaska, Canada, or countries from the extreme polar regions are formed? Even though the sun is at a distance of 93 million miles from Earth, its effects are very powerful. The sun discharges charged particles in space during solar storms, and if Earth happens to come in contact with one such stream of charged particles, its magnetic field reacts at the point of contact. When the sun's charged particles enter Earth's atmosphere, it causes the atoms in the atmosphere to get "excited," which causes them to light up. The colors are formed due to the different types of gases in Earth's atmosphere that come in contact with the charged particles. Oxygen atoms emit green colors, while nitrogen atoms may react and emit blue or red colors. This results in a display of light that usually appears as flowing curtains in the night sky, but they sometimes also form arcs and spirals. The lights that occur near the North Pole are called aurora borealis, or northern lights, while the lights that occur near the South Pole are called aurora australis, or southern lights. 2 Select the correct answer. What is the purpose of the passage? A. to persuade readers to watch auroras near polar regions B. to inform readers about auroras near polar regions C. to entertain readers with a legend about auroras D. to instruct readers on how to watch auroras

Johnny just received a failing grade on his science exam. lucy oversaw johnny’s paper, and she asked him about it. johnny snapped at her shouting, “it’s none of your business! ” which of the following is the psychological response johnny exhibited towards lucy? select one: a. dismay b. irritability c. hesitation d. hopelessness

How did the industrial revolution shape the beliefs of the romantics

Which part of the story shows how kiara and tanya's differences affect their friendship? kiara and tanya were the best of friends. when they were 10 years old, they always went everywhere together. all their friends knew that if they found one of them, they would find the other. anyone who didn't know them thought that they were twins because both kiara and tanya had long, silky red hair and pale complexions. they were even similar in height and build. they were more like sisters than friends. but as similar as they were in appearance, they were just as different when it came to their personalities. this difference didn't affect their friendship, at least not for a long time. kiara always got out and participated in activities and competitions. tanya was happiest when reading a book at home. kiara was outgoing and talkative. tanya was quiet and shy. kiara was popular, and people were drawn to her because of her ability to make quick friends. tanya hardly had any friends besides kiara. as they grew older, kiara managed to make a large group of friends. tanya, on the other hand, still remained shy and reserved. this difference in their personalities eventually caused a rift between the two friends. tanya would refuse invitations to parties and movies that kiara invited her to. she just didn't want to hang out with people she didn't know that well. kiara couldn't understand why. she thought tanya disliked her friends. eventually, kiara and tanya both realized that they had outgrown one another. they still remained friends, but they were not as close as they once had been.