Some possible keywords for searches on this unit are: community, space, efficient space, natural disasters, disaster, civic engagement, tornado, drought, earthquake, flood.
What is a community? What do you need to create a community?
Can you create an instant community?
Do you need communities?
What does a family of three need to live?
How to use space efficiently?
Do we need big houses to live in when the population is getting so big?
What are the major types of natural disasters that happen in the world?
How do natural disasters affect the community?
Should scientists be able to prevent natural disasters by now?