A large group of stars, gas and dust all loosely held together by gravity. Earth's galaxy is called the Milky Way
Galaxy
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The process that traps energy from the sun by allowing radiant energy to enter a given space but preventing heat energy from escaping
Green House Effect
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The imaginary line of longitude that passes through the town of Greenwich in London. It divides the earth into eastern and western hemisphere
Greenwich Meridian
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People with their knowledge , skills , and ability which they use to satisfy their needs and the needs of others
Human Resources
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