Agents can submit the form, then save the provided ‘Edit your responses’ link in order to return and complete the form in multiple sittings, or change any answer.
According to the site, responses will close approximately February 11th, and top analysts (those who combine the best knowledge, imagination and insight to generate a unique and optimal response) will be contacted to receive their reward. Other analysts (with less optimal responses) may also be contacted and rewarded for their efforts.
Good luck, Agents and Investigators…
Source: Investigate Ingress