Question

1. what is the main agricultural product of the southern region of brazil? 18. which brazilian city hosted the 2016 summer olympics?

Explanation:

1. The southern region of Brazil has suitable climate and soil for rice cultivation, making it a main agricultural product there.
2. Rio de Janeiro was selected as the host city for the 2016 Summer Olympics through the Olympic bidding process.

Answer:

1. Rice
2. Rio de Janeiro