Extra projects

• X01 · Many water places

• X02 · Two possible causes

• X03 · Check the condensation claim

• X04 · A branched trail

• X05 · Teach the missing bit

• X06 · A scale that cannot say that

• X07 · A graph worth reading

• X08 · Local-source swap

• X09 · Useful version, fewer words

• X10 · Future investigation plan