阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Litter is everywhere，doing great harm 【小题1】 the environment and life on our planet.Jeff Kirschner，who wants to build a litter-free world，started a global community named Litterati 【小题2】   (settle)this problem.

The story began with his 6-year-old daughter.One day they were going on a hike when the girl noticed a 【小题3】 (break)plastic tub(浴盆)in a river.She said，“Daddy，that doesn’t go there.”That took Kirschner by surprise.He，like many adults，had become so used to the rubbish around them that he hadn’t given it a second look.【小题4】 his daughter said reminded him of the serious problem our planet faces.

Jeff started to take   【小题5】(act).He created Litterati，an app that makes it fun to pick up litter.The idea is   【小题6】(fair) simple:Spot a piece of trash，take a photo，post the photo online and then put the litter into dustbins.

【小题7】 (see)that Jeff was keeping a record of the positive impact he was having on the planet，people worldwide started participating.Up to now，over 2，500，000 photos posted by 3,500 people from over 40 countries 【小题8】 (find)their way to Litterati’s digital landfill.

Litterati is more than an app.It is a highly 【小题9】 (effect)solution to a pressing issue.Wherever you live，whatever you do and   【小题10】 you are，join Litterati to make the world a cleaner and healthier place to live in.