To want to know what factors affect rice production, and why that makes Thai Viet Nam rice production than it does a query to query information farmers and the processing and implementation of further benefits.
Need to know what factors that affect rice production and causes that make Vietnamese rice more than Thailand so doing survey asked farmers and the data were processed and put to further use.
To want to know which factors affecting rice production and any cause that Vietnam produces rice than the act was to ask the farmers and the data acquisition, processing and useful.