How does the uneven heating of the earth cause ocean currents and winds?

Differeces in temperature lead to differences in pressure and density, which is why cold air sinks and warm air rises. Also, thermal energy has a tendency to move to cooler areas.

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Humans have survived and thrived in mexico city by using technology to create greater access to land. when the spanish conquered the aztec capital, tenochtitlan, in the 16th century, they built mexico city by draining the lakes and filling in the lake water to create more arable land for agriculture. this technique of land reclamation has continued to be fundamental to human civilization in mexico city.