What is the principle of original horizontality

It states that layers of sediment are originally deposited horizontally due to the effects of gravity.

Answerbecause of improved transportation, communication, and other advantages;

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.