Which source would be the best to base a hypothesis upon?
a)prior knowledge of a situation
b)popular beliefs about an issue
c)public opinion polls about a problem
d)a blog about a problem on the internet

A. A hypothesis is a proposition that aims to explain a phenomenon or occurrence. In order for a Scientific hypothesis to be proved, a Scientific method must be used to test it (e.g. observation of data/statistics, analysis of measurements). A working hypothesis requires further data and analysis to be proved. With an amount of prior knowledge of a situation, a hypothesis can be formed as an explanation.

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.