C. They are based on evidences obtained from investigation
Answer:
Seus membros integrais são Argentina, Brasil, Paraguai e Uruguai. A Venezuela é um membro pleno, mas está suspensa desde 1º de dezembro de 2016. Os países associados são Bolívia, Chile, Colômbia, Equador, Guiana, Peru e Suriname. Os países observadores são a Nova Zelândia e o México.
Explanation:
In 1990 rice production= 350 million tons
In 1999 rice production = 400 million tons
400-350= 50 million ton increase
50/350=.1428 To calculate the percentage increase you divide the total amount increased by the initial amount to determine the percent.
Therefore the world rice production increased by approximately 14% from 1990 to 1999.