Can you answer these questions?

1) did the olmec leave any buildings and/or sculptures? if so, describe them briefly.
2) did the chavin leave any buildings and/or sculptures? if so, describe them briefly.
3) how did the olmec and chavin survive? describe to both
4) how did the maya lowland farms and maya highland cities survive? describe to both
5) what were the olmec and chavin accomplishment?
6) what were the maya lowland farms and maya highland cities accomplishment?

Here are the answers:

1) They left seventeen sculptures that are large heads, big nose, and wide cheeks.

2) Yes, it left some deity sculptures, pilgrimage site, Chavin De Huantar, and sculptured heads of different animals.

3) The Olmecs are farmers, they know how to grow different staple food. 
The Chavin know how to herd, farm and trade. They have a religious community

4) The Maya in lowlands have farmers, slaves, and laborers. The have fertile lands that they farm on, they hunt and have some architectures.
  
 The Maya highland live about hundreds of meters above the ground. They have a good source of minerals, the farms their lands, trade, and hunt.

5) The both have complex civilizations and have different abilities.

6) They both have advanced civilizations during their time and have developed different skills.

February 1848 is when it was added. if that's what you were asking