D. three-quarters of earth's water is fresh water.
Answer:
Its A Ocean Currents
Explanation:
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The difference is that ethnicity is a socially defined category of people who identify with each other and culture is a range of humans that aren’t genetic inheritance.
4.54 billion years<span>The "best" age for the Earth is based on the time required for the lead isotopes in four very old lead ores (galena) to have evolved from the composition of lead at the time the Solar System formed, as recorded in the Canyon Diablo iron meteorite. This "model lead age" is <span>4.54 billion years</span></span>
