During the split kingdom, the country in the south was

Dall of the above all of the choices make sense

Asmall closed hole formed in an outwash plain or moraine. forms when a  glacier retreats then remains stationary. 

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. 

The answer to the first one is barometer.