Compute θe using the approximate form given by eq. (3.18), the semi-empirical form given by (3.19), the quasi-accurate form given by bryan (2008) and the accurate form given by eq. (3.20) (eq. 43 in bolton 1980). assume the following extreme conditions, the first for a very cold day, and the second for an extremely hot and humid day in the southeast. any conclusions?

I'm pretty sure it's c. extremely gradual but not 100% sure though.

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.