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Consider the following about Solar flares and coronal mass ejections (CMEs):
1) A CME can jostle Earth’s magnetic fields creating currents that drive particles down toward Earth's poles.
2) Both eruptions are created when the motion of the sun’s interior contorts its own magnetic fields.
3) While solar flares involve huge explosions of energy, CMEs involve formation of energy suctions in space that consume energy from its surroundings.
4) CMEs travel at the speed of light, Solar flares do not.
1 and 2 only
3 and 4 only
1, 2 and 3 only
1, 2 and 4 only
Statement 1: Flares and CMEs have different effects at Earth as well. The energy from a flare can disrupt the area of the atmosphere through which radio waves travel. This can lead to degradation and, at worst, temporary blackouts in navigation and communications signals. On the other hand, CMEs can funnel particles into near-Earth space. A CME can jostle Earth’s magnetic fields creating currents that drive particles down toward Earth's poles. When these react with oxygen and nitrogen, they help create the aurora, also known as the Northern and Southern Lights. Additionally, the magnetic changes can affect a variety of human technologies. Statement 3: Like the sudden release of a twisted rubber band, the magnetic fields explosively realign, driving vast amounts of energy into space. This phenomenon can create a sudden flash of light -- a solar flare. The magnetic contortions can also create a different kind of explosion that hurls solar matter into space. Statement 4: Flares can last minutes to hours and they contain tremendous amounts of energy. Traveling at the speed of light, it takes eight minutes for the light from a solar flare to reach Earth. Some of the energy released in the flare also accelerates very high energy particles that can reach Earth in tens of minutes. The CME is an immense cloud of magnetized particles hurled into space. Traveling over a million miles per hour, the hot material called plasma takes up to three days to reach Earth. The differences between the two types of explosions can be seen through solar telescopes, with flares appearing as a bright light and CMEs appearing as enormous fans of gas swelling into space.
By: Abhishek Sharma ProfileResourcesReport error
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