Why is the passage an example of a secondary source? The author is describing a firsthand account of the ruins of Pompeii.
The author is providing commentary on his discovery in the ruins of Pompeii.
The author is explaining what he experienced during the eruption of Mount Vesuvius.
The author is presenting evidence about the damage caused by the eruption of Mount Vesuvius.

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. 

Ibelieve that is false not 100% tho

Hello,the first women to become a astronaut was  valentina tereshkova, but she never land the  moon : dhope this -hottwizzlers