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Granada, Spain

University of Granada

Earth Sciences

Ciencias de la Tierra

Language: Spanish Studies in Spanish

Kind of studies: full-time studies

University website: www.ugr.es

Earth

Earth is the third planet from the Sun and the only object in the Universe known to harbor life. According to radiometric dating and other sources of evidence, Earth formed over 4.5 billion years ago. Earth's gravity interacts with other objects in space, especially the Sun and the Moon, Earth's only natural satellite. Earth revolves around the Sun in 365.26 days, a period known as an Earth year. During this time, Earth rotates about its axis about 366.26 times.

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Earth

Earth below us
drifting, falling.
Floating weightless
calling, calling home...

Peter Schilling, song Major Tom (Coming Home) (1983).

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Earth

This poor world, the object of so much insane attachment, we are about to leave; it is but misery, vanity, and folly; a phantom, — the very fashion of which "passeth away."

François Fénelon, reported in Josiah Hotchkiss Gilbert, Dictionary of Burning Words of Brilliant Writers (1895), p. 206.

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Earth

But the meek shall inherit the earth; and shall delight themselves in the abundance of peace.

David, Book of Psalms 37:11.

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Physical sciences, Earth sciences

Cleaning up with photocatalysts

Pesticides are used around the world but can persist in the environment, contaminating drinking and irrigation water with toxic organic compounds. One example is Vietnam where herbicides and dioxins applied during the Vietnam war entered the water cycle, possibly leading to cancers and abnormalities in newborn babies.

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