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PUBLIC MARKS from me304928 with tag ecology

27 February 2007

On Shifting the Desert to Grass

There may have been an ecological alternative in the Middle East.

ecology science ecosystem Babylon persia marsh swamp bog sand Grass

20 February 2007

Theory of Sand and Dirt

Ancient Egyptians prevented an ecosystem from establishing itself in ancient Egypt.

science biology ecology egyptian Egypt nile ecosystem sand dirt

1 (2 marks)

me304928's TAGS related to tag ecology