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An oasis is a small, fertile area in the middle of a desert, where water is available either naturally or artificially. Deserts are known for their extremely dry conditions and lack of water. However, in certain places, underground water sources such as natural springs or wells reach the surface, making it possible for vegetation and even small communities to survive. This fertile spot in an otherwise barren desert is called an oasis.
Oases are crucial for life in desert regions. They provide water for drinking, agriculture, and raising animals, making them essential survival points for humans and wildlife. Palm trees, date plants, grasses, and small farmlands are commonly found in these areas because the water supports plant growth. Historically, oases served as important resting and trading stops for travelers and caravans crossing vast deserts, particularly in the Sahara Desert, Arabian Desert, and deserts of Central Asia.
The other options are not correct:
Glaciers: Found in cold, mountainous regions, not deserts.
Islands: Surrounded by water, unrelated to desert landforms.
Volcanoes: Openings in Earth's crust where lava erupts, not linked to oases.
Fertile land: An oasis is fertile, but the term specifically refers to fertile spots in deserts only.
Thus, an oasis is directly associated with deserts, where water availability makes plant and animal life possible in an otherwise harsh and dry environment. This concept is part of Everyday Science, as it explains natural landforms and their importance in supporting life in extreme climates.
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