The Mayan and other Mesoamerican cultures used a vigesimal number system based on base 20 (and, to some extent, base 5), probably originally developed from counting on fingers and toes. The numerals consisted of only three symbols: zero, represented as a shell shape; one, a dot; and five, a bar.
Answer:
Part of this border follows a natural boundary.
Explanation:
The answer is this one because Its a natural line between texas and Mexico and there are no mountains
The surrounding water is usually understood to be continuous, though not necessarily named as a single body of water.
Explanation:
Answer:
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Column 1: climate zone Column 2: characteristic
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a) tropical — always near an ocean.
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b) dry — heat and dryness.
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c) moderate — heat and rain.
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d) continental —ice year round.
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