800,000-year Ice-Core Records of Atmospheric Carbon Dioxide (CO2) This page introduces Antarctic ice-core records of carbon dioxide (CO2<span>) that now extend back </span>800,000 years<span> at Dome C and over</span>400,000 years<span> at the Vostok site.</span>
The answers that apply are;
- striped pattern
- provide evidence to seafloor spreading
Ocean ridges can be found at divergent boundaries where two plates are moving away from each other. As the magma rises to fill the void, it cools into rock and forms new crust. The iron minerals in the rocks align with the earth’s magnetic field before the rock cools. This causes the rocks in these areas of seafloor spreading to have band-like patterns. The irons align differently each number of years in relation to the flipping of the earth’s magnetic field. This phenomenon has been used to determine the ages of these rock layers.
Explanation:
Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. Water, acids, salt, plants, animals, and changes in temperature are all agents of weathering and erosion.
Eva (Evita) Perón's legacy has inspired books, musicals, & films; she escaped rural Argentina, where there were few opportunities, & gained prominence as a radio & movie star; Eva's popularity among masses assisted her husband (Juan Perón) in his rise to power; using her radio show to tell people about her husband's policies, she helped him win the support of the working class (whom she affectionately called the descamisados (shirtless ones)); although she didn't hold a political office, she received the honorary title "Spiritual Leader of the Nation"; promising redistribution of wealth, labor reform, & national glory for Argentina, the Peróns threatened security of the wealthy who held power & gave hope to the poor; even in death, Eva Perón remained a controversial figure
Juan Perón had her body embalmed & had planned a large memorial to immortalize her, but his government was overthrown & he was sent into exile in 1955; at that time, the new government hid her body in an attempt to get rid of any evidence of the Perón years; her enemies buried her in a secret grave in Italy, where her body remained until the 1970s; her; her body was eventually returned to Argentina & laid to rest in a family cemetery in Buenos Aires
Her legacy has been subject to different interpretations over time; her supporters view her as a powerful female leader who championed of the poor & middle classes; those who opposed her said she manipulated the masses for her own ambitions; historians continue to sift through diary entries, political documents, & letters to unravel more about the mysteries of Eva Perón
Controversy surrounding Perón rule's reflective of political & social divisions within Latin America
Most nations in South America had gained their independence from Spain by the middle of the 19th century; throughout the remaining decades of that century & into the 20th, many South American nations struggled with political instability; governments rose & fell quickly & military coups d'etat were common; Juan Perón of Argentina is just one example of these political struggles
